See how mobile billing works, where provider availability can differ, and which limits and bonus terms to check before depositing.
How SMS Deposits Fit the UK Casino Market
“SMS deposit” is a broad label for funding a casino account through a payment service that uses your mobile phone. In the UK, Boku is one example: the deposit is handled through the phone-payment route rather than a debit card or bank transfer. The name can make the process sound like sending a text directly to a casino. It is more useful to think of it as Pay by Phone, with an intermediary service connecting the casino and your mobile account.
That distinction matters when you look for casinos that accept SMS deposits. A casino may offer a phone-based payment option without offering Boku specifically. Operators have used services such as Fonix and Siru Mobile as alternatives, while some have removed Pay by Phone altogether. So a general label in a payment list does not tell you which provider is available, or whether that option is still active at a particular casino.
The Boku part of the market has narrowed. A specialist review of UK payment options describes operators moving away from Boku since 2023, with some switching to Fonix or Siru Mobile and others dropping phone deposits. The remaining pool of UKGC-licensed casinos that accept Boku is small. This is a change in operator payment choices, not a named prohibition on Boku by the Gambling Commission.
That makes older lists of casinos with Pay by SMS less useful than they may appear. A page can continue to name a casino after its cashier has changed, or group different providers under one broad heading. The practical question is not simply whether a site once accepted a phone deposit; it is whether the method you intend to use appears in that casino’s current cashier. Availability can differ between Boku and other Pay by Phone services.
There are two labels worth keeping separate:
| Label | What it tells you |
|---|---|
| SMS deposit | A general description of paying through a mobile-based service |
| Boku | A specific payment provider, still accepted by a small number of UKGC-licensed casinos |
| Pay by Phone | A broader term that can cover Boku or another supported phone-payment service |
For you, the difference affects how you compare offers. If you specifically want Boku, a casino that supports Fonix or Siru Mobile is not a substitute in the strict sense, even though both are phone-based routes. If you only need to pay through your mobile account, you may have a wider choice, depending on what the casino supports. The provider name is the useful detail; “SMS” alone is not.
It also helps to separate payment availability from the wider status of the casino. In Great Britain, remote gambling operators selling to customers must hold the relevant Gambling Commission licence. A phone-payment logo does not establish that status, and a licensed operator is not automatically a Boku casino. These are separate checks: one concerns permission to offer gambling to the market, the other concerns the payment methods currently available in the cashier.
There is no single, stable directory implied by the phrase “casinos that pay by SMS”. Operators can alter their payment menus, and the movement away from Boku means that an old reference may describe a former option rather than a current one. Even when a casino still supports Pay by Phone, the provider may have changed. Treat Boku, Fonix and Siru Mobile as distinct names, not interchangeable versions of the same cashier button.
The clearest market picture, then, is a shrinking Boku niche within a wider category of phone-based deposits. Boku remains available at a small number of UKGC-licensed casinos, while other operators have moved to different services or withdrawn the option. The method is not extinct, but it is no longer safe to assume that a casino advertising mobile payments means Boku is available. Check the provider shown by the casino before deciding whether its payment route fits what you need. A small distinction; a different cashier.
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What Happens When You Pay by SMS
A Pay by Phone deposit starts in the casino’s cashier, not in your phone’s messaging app. After signing in, open the deposit area and look for Boku among the available payment methods. The cashier is the point where you choose the route and begin the transaction; the text message comes later, as the confirmation step.
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The labels and layout can differ between casinos, so follow the instructions shown on the screen. If Boku is listed, select it and enter the amount you want to deposit. You will then be asked for a mobile number. Check the digits before continuing: the number you provide is needed for the SMS verification stage.
A specialist review describes Boku deposits as available only in amounts divisible by ten, giving £10, £20 and £30 as examples. That detail should not be treated as a universal rule for every cashier: check the amounts the casino actually offers before you submit the request. The available choices shown on screen are more useful than assuming that every operator handles the payment in the same way.
Once you have entered the amount and phone number, review the transaction details presented by the cashier. If they are correct, continue to request the confirmation message. Boku sends an SMS verification code to the number entered during the payment process. Enter that code where prompted to confirm the deposit. Until you complete this step, the request has not been confirmed through the stated process.
The sequence is straightforward: choose Boku, specify an amount, provide a mobile number, then enter the code sent by SMS. Keep the cashier page open while you retrieve the message, and use the code in the field provided rather than starting a second deposit request. If the message does not arrive, check that the number you entered is correct and follow the cashier’s on-screen instructions. Do not guess a code or assume that a pending request has gone through.
If you spot an error before confirming, pause rather than completing the transaction with details you did not intend to submit. Return to the cashier’s instructions and correct the entry if the page allows it. If the process has already moved on, use the casino’s own guidance for that transaction instead of repeating it straight away. This keeps the steps tied to the request you are looking at, rather than creating confusion over which attempt you have confirmed.
After you submit the code, look for the cashier’s response. It should indicate whether the request was accepted or whether another action is needed. The SMS code confirms the payment request; it is not a casino login code or a separate account-registration step. If the cashier does not show a clear result, avoid treating the deposit as completed solely because a text arrived. Check the status displayed in your account before deciding what to do next.
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A pay-by-SMS casino may present this flow in a slightly different order or use different button labels, but the key actions remain the same when Boku is offered: select the method, enter the deposit amount and phone number, and confirm with the SMS code. Read each prompt as it appears. In particular, distinguish a request to enter your number from the later request to enter the verification code; they are separate steps, not two versions of the same field.
This method can be useful when you want to start a deposit through the casino cashier using your mobile number rather than entering card details there. It does not remove the need to check the screen carefully. The amount, phone number and confirmation message all belong to one payment attempt, and the code is the final action described in the cashier process.
The practical test is simple: can you find Boku in the cashier, enter the requested details, receive a code and confirm? If the method is not displayed, or the process does not accept the details you have entered, do not assume that another Pay by Phone provider will follow the same steps. Use only the payment options shown by that casino and its own instructions.
No mystery. Just the sequence.
Compare Pay-by-Phone Options by What Matters to You
There is no single Pay by Phone option that suits every casino player. The practical choice depends first on which provider appears in the casino cashier, then on whether you want to use that route and whether the casino’s bonus terms treat phone deposits as eligible. A provider name on a payment page is useful only if it matches the method you can use.
| Casino | Pay-by-phone provider identified in a specialist review | Bonus eligibility recorded in that review |
|---|---|---|
| MrQ | Fonix | Pay-by-phone deposits accepted for bonus eligibility |
| Duelz | Fonix | Pay-by-phone deposits accepted for bonus eligibility |
| Mr Vegas | Siru Mobile | Pay-by-phone deposits accepted for bonus eligibility |
| Videoslots | Siru Mobile | Pay-by-phone deposits accepted for bonus eligibility |
This is a comparison by payment route, not a ranking. The specialist review identifies Fonix at MrQ and Duelz, and Siru Mobile at Mr Vegas and Videoslots. Because payment menus can change, check the cashier at the casino you intend to use before relying on a particular option.
If you want Fonix
MrQ and Duelz are the relevant pair if you are looking for Fonix. Their shared provider makes them easy to compare on that criterion, but it does not make one automatically better. Consider whether Fonix is displayed in the cashier, whether you are comfortable authorising a deposit through your phone, and whether the casino’s offer conditions suit you.
The review also records that pay-by-phone deposits at both casinos can qualify for bonus eligibility. Treat that as a useful distinction, not a substitute for reading the terms attached to the specific offer you plan to claim. Eligibility can depend on the offer and its conditions; the cashier’s payment label alone does not establish that a particular promotion applies.
If you want Siru Mobile
Mr Vegas and Videoslots are the pair associated with Siru Mobile in the same specialist review. If that is the provider you are looking for, compare these two rather than assuming that a casino supporting another phone-payment route will support Siru Mobile as well.
The review records pay-by-phone deposits at both operators as accepted for bonus eligibility. That gives you a reason to check their current promotions and terms, but it is not a blanket promise that every offer will include every payment route. Read the conditions for the particular bonus before depositing.
Choose by fit, not by a “best” label
When people look for the best Pay by Phone casinos, the useful question is usually narrower: which casino supports the provider you want, and will the deposit count towards the offer you intend to use? On the provider criterion alone, MrQ and Duelz match Fonix, while Mr Vegas and Videoslots match Siru Mobile. On bonus eligibility, the specialist review records all four as accepting pay-by-phone deposits for bonus purposes.
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That comparison does not establish an overall winner. If your priority is a specific provider, the relevant pair is clear. If your priority is bonus eligibility, all four appear in the review’s eligible group, so the offer’s own terms become the deciding detail. If the cashier does not show the provider you need, a casino’s general support for phone payments is not enough to assume that the route is available to you.
Use the casino’s payment page as the final check. Look for the provider name rather than relying on a broad label such as “mobile payment”: Fonix and Siru Mobile are distinct routes, and the operator determines which one it offers. Then check the bonus conditions separately. A payment option being available does not, by itself, confirm that the promotion you want includes it.
The distinction is simple, but worth keeping straight: compare casinos by the provider they support, then compare offers by their stated eligibility. MrQ and Duelz are the Fonix choices identified here; Mr Vegas and Videoslots are the Siru Mobile choices. For the four named operators, the specialist review also records pay-by-phone deposits as eligible for bonus purposes, while the exact offer conditions still need checking. No universal winner.
Deposit Amounts, Daily Caps and Phone-Balance Limits
A Boku deposit can be constrained by several separate limits: the amount the casino permits, the ceiling applied by the payment service or mobile network, and the balance or spending allowance on your phone account. These limits do not necessarily match. A deposit accepted by the casino cashier may still be declined because the network will not process it.
Transaction limits are not reported consistently
A specialist casino-payment review describes £30 as the standard UK Boku limit for one transaction, while noting that some casinos or network operators may permit £40 or £50. However, reported network-level limits give a different picture. One account places the per-transaction ceiling at £10 and the daily limit at £30; another gives a £30 daily cap without specifying a transaction ceiling.
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Those figures should not be combined into a single promised limit. The disagreement matters: a £30 casino-side limit does not establish that your mobile operator will approve a £30 payment, and a network report that specifies a daily cap does not tell you what it will allow for each individual deposit. Treat any quoted ceiling as dependent on the particular casino, payment route and mobile account.
The most useful check is the amount shown in the cashier when you select Boku, followed by any limit information provided by your network. If the available deposit choices appear lower than the casino’s stated maximum, the smaller limit may be the one that controls your payment. A larger advertised ceiling is not a guarantee of approval.
Daily caps are set outside the casino
A specialist payment review attributes Boku’s daily deposit limit to the mobile operator rather than the casino. That distinction helps explain why two players using the same casino might not have the same available allowance: their network accounts may be subject to different controls.
The reported daily figures also conflict. Some network-level information describes a £30-per-day limit alongside a £10 transaction ceiling, while other information states a £30 daily limit but does not identify a separate per-transaction cap. Check the limit that applies to your own account instead of assuming that one figure covers every Boku casino deposit in the UK.
A daily cap is separate from the amount you can pay in one go. If a network limit applies across payments, previous Boku transactions may affect how much room remains for another deposit that day. The casino may not be able to raise that allowance, because the restriction is enforced by the mobile operator.
PAYG balance is another ceiling
For a Pay As You Go account, the available phone credit can restrict a deposit before any daily cap becomes relevant. A specialist review states that a Boku payment cannot exceed the remaining prepaid balance. If the balance is too low for the selected amount, the payment may be declined.
That makes the usable amount the lowest applicable limit, not necessarily the figure displayed by the casino. For example, a casino might offer a deposit amount that is within its own cap, but the transaction could still fail if your remaining PAYG credit is lower. The same logic applies where a network-level transaction or daily restriction is tighter than the casino’s allowance.
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Before trying again after a rejection, check the amount selected, your remaining phone credit if you use PAYG, and any limits your mobile operator applies. Repeating a payment without identifying which ceiling blocked it is unlikely to change the result. The smallest limit wins.
Where Direct Boku Deposits Are Still Available
Direct Boku availability has narrowed to a small group, so a name on an older list is not enough to confirm that you can use it today. A specialist review identifies Jackpot Mobile Casino and Peachy Games among the remaining sites with direct Boku deposits. Treat those names as starting points: check the casino’s current cashier before registering on the assumption that Boku is available.
Other specialist casino reviews have also listed BoyleSports, Sun Bingo, William Hill, Sky Vegas, PlayOJO, Genting Casino, Betfred, Lottoland, bwin and 888 Casino as Boku options. That wider set should not be read as a guaranteed, up-to-date directory. Payment menus change, and an operator may remove a method or offer different options to different customers. The practical test is whether Boku appears in the deposit section of the casino you intend to use.
This is why a “top” list of SMS casinos can be misleading: it may combine direct Boku with other Pay by Phone services, or repeat operator names after their cashier has changed. If you specifically want Boku, compare sites by one criterion first—whether direct Boku is currently shown as a deposit method. Only then consider other features that matter to you. There is no reliable winner if the payment route you need is absent.
The broader names above are useful leads, not proof that every listed casino still accepts Boku. Check the payment page and the operator’s current terms before making a decision. Also verify the casino’s licence on the UK Gambling Commission public register before depositing. A payment logo on a review page cannot establish either current availability or licensing status. Small list. Verify first.
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How SMS Casino Deposits Appear on Your Bill
With Boku, the casino deposit is collected through your mobile account rather than paid directly from a bank card. If you have a monthly-billed plan, the amount is added to your mobile phone bill. If you use Pay as You Go (PAYG), it is deducted from your available phone credit. In either case, the payment travels through your mobile provider.
That billing route is the key difference between an SMS billing casino deposit and a conventional card payment: the amount is charged to your phone account. You still need to check the amount shown in the casino cashier before confirming, because it is the casino deposit that will be billed or taken from your credit.
A specialist casino review gives £30 as the standard UK Boku transaction limit, while noting that some casinos or network operators may permit £40 or £50. Treat those figures as a guide to reported limits, not a universal promise: the amount available to you can depend on the casino and the mobile provider. Sources also differ on how transaction limits are described, so a stated cap should be checked against the terms shown for your own payment.
For PAYG, the available balance is a practical constraint as well as the provider’s payment limit: a deposit cannot be taken if there is not enough credit left to cover it. On a monthly plan, the charge appears through the mobile bill instead. The route changes, but neither turns Boku into a card payment.
If you are comparing SMS billing slots or other casino deposits made through your phone, focus on what your account will be charged and the limit presented at checkout. A £30 figure may be a useful reference point, but it does not guarantee that every casino or network will accept that amount. Check the displayed options before confirming, and remember that the charge is collected through your mobile account—not sent back to it as a cash-out method.
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Using Your Mobile Network and Phone Credit
For a mobile casino deposit, your network matters because Pay by Phone services rely on the mobile account attached to your number. EE, O2, Vodafone and Three support Pay by Phone and Fonix. That support does not mean every casino offers every provider: the payment options shown in a casino’s cashier are the practical test.
The account type also affects how a payment is collected. With a monthly-billed plan, an approved deposit can be added to the phone account. With pay-as-you-go (PAYG), Boku uses the credit already on the handset rather than extending a line of credit. A specialist review notes that a PAYG Boku deposit cannot exceed the remaining phone balance; if the balance is too low, the payment cannot be completed.
That distinction is useful when comparing a mobile casino deposit by SMS with other ways to fund an account. A monthly-billed customer may have a different available balance from a PAYG customer, even when both use a supported network. Network support alone does not confirm that your specific plan, account or chosen casino will accept the transaction. Check the cashier and your account conditions before relying on the method.
BoyleSports has also added Boku to its cashier as a UK-based payment option, according to a specialist review. This is a provider-specific detail, not evidence that Boku is available across all casinos or networks. Your best fit depends on the combination: the casino must offer the payment service, and your mobile account must be able to process it.
If you are using a work, family or otherwise restricted mobile account, confirm that it permits Pay by Phone charges before trying to deposit. The number entered for the transaction needs to be associated with an eligible account. A supported network is only the starting point; the casino’s cashier and the terms of your mobile plan determine whether the route works for you.
SMS Deposits at Slot Casinos: What the Payment Method Changes
“SMS slots” can sound like a separate category of games, but the phrase describes how you fund a casino account, not what you play. An SMS deposit is a payment choice. It does not turn a slot into a different game or define a special type of casino.
The same distinction applies when you see references to SMS slot casinos or slot sites that accept SMS deposits. The relevant question is whether the casino offers a Pay by Phone method in its cashier. The label tells you about the route for putting money into your account; it does not, by itself, tell you anything about the games available there.
A deposit method, not a game feature
A casino may let you make a deposit through Boku, but Boku is for funding an account only. You cannot use it to withdraw casino funds. That matters if you arrive looking for “SMS slots” and assume the payment method works in both directions: it does not.
Nor does the wording “SMS deposit slots” mean that a particular slot accepts a phone payment directly. The payment is made to the casino account, rather than to an individual game. Once you are considering a casino, keep the payment question separate from the game question.
Check the casino account, not the game title
If you are looking for slot casinos that take payment by phone, check the casino’s available deposit methods. Do not infer that a game supports SMS simply because a site describes itself as an SMS casino. The method applies at account level, and its presence does not identify a special group of slots.
The same caution applies to searches for a £10 deposit by SMS at slot sites: the amount in a phrase does not establish that every casino accepts it, or that a particular slot has a minimum deposit. The cashier is where you can see whether the payment route is available to you.
In short, treat “SMS” as a funding label, not a game feature. Keep those two questions separate.
Payment Routes, Withdrawals and UK Licensing
Boku is a deposit route, not a way to receive casino winnings. If you fund an account with it, you need to register a separate withdrawal method—such as a debit card, e-wallet or bank transfer—and check that the casino accepts that method for payouts. The payment used to put money in does not automatically provide a route back out.
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A specialist payment review describes one indirect option: use Boku to add funds to Neteller, then deposit from Neteller at a casino that accepts it. That depends on both services allowing the transactions and the casino supporting Neteller; it is not a direct Boku withdrawal. Check the available cashier options before depositing, rather than assuming a route will work in both directions.
Licensing matters alongside the payment route. The UK Gambling Commission regulates commercial gambling in Great Britain and is the regulator responsible for remote gambling offered to consumers there, wherever the operator’s key equipment is located. It issues operating licences to gambling businesses and personal licences to individuals working in relevant roles. A casino offering real-money play to customers in Great Britain must hold the appropriate UKGC operating licence.
Before making an SMS casino payment, verify the casino’s licence number on the Commission’s public register. A payment method’s presence in a cashier is not proof that the operator is licensed. The register is the practical check; the brand name alone is not enough. Check first.
Bonus Terms to Check Before You Deposit by SMS
A Pay by Phone deposit does not automatically qualify for a welcome offer. Eligibility is set by each casino, and phone deposits are commonly excluded. Check the promotion’s terms before you pay, rather than assuming that a deposit method accepted by the cashier will also count towards a bonus.
Look for wording that names Pay by Phone, Boku or the specific payment provider. The terms should explain whether deposits made that way qualify, and whether any other conditions apply. If the wording is unclear, ask the casino’s customer support before depositing. A bonus shown on the promotions page is not proof that every payment route qualifies.
Eligibility can vary even between operators using similar payment services. A specialist review confirmed that MrQ, Duelz, Mr Vegas and Videoslots accept pay-by-phone deposits for bonus eligibility. Treat that as operator-specific information, not a guarantee that every offer at those casinos includes phone deposits; promotion terms can differ.
A specialist review also found no Boku-specific deposit restrictions at the platforms it assessed, and reported that Boku deposits did not generally come with a separate bonus. That does not establish the terms of a particular offer. Check the offer attached to your account and the payment exclusions before you commit.
If the bonus matters more than paying through your phone, compare the eligible payment methods in the offer terms first. If using Pay by Phone matters more, confirm that the chosen promotion accepts it—or decide to deposit without claiming the offer. Better to know before the deposit.
What are the deposit limits at pay by mobile casinos?
Boku’s standard UK limit is £30 per transaction, although some casinos or networks may allow £40 or £50. Network-level limits are typically about £10 per transaction and £30 per day, so check the amounts and limits shown by your casino and mobile operator.
Are Boku casinos still available in the UK in 2026?
Yes, a small number of UKGC-licensed casinos still accept Boku. The choice has narrowed since 2023, so check the casino’s current cashier for Boku specifically.
How to deposit with Boku at online casinos?
Choose Boku in the casino cashier, enter an available deposit amount and your mobile number, then confirm the payment with the SMS verification code. Deposits are available in amounts divisible by ten, such as £10, £20 or £30.
Can I deposit by phone bill without Boku?
Yes. Some casinos use other Pay by Phone services, including Fonix and Siru Mobile; check which provider appears in the casino’s current cashier.
What is the standard Boku deposit limit in the UK?
The standard limit is £30 per transaction, though some casinos or mobile networks may allow up to £40 or £50. Network-level limits are typically about £10 per transaction and £30 per day.
Material created by the team Jackpot City UK Guide
