Three Pay by Phone Casino Deposits

Chris Vaughan
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Three UK users can use 3Pay to fund casino accounts from their phone bill. This page covers the Three Pay by Mobile casino deposit process, limits, fees, supported plans, and top Three-friendly casinos.

Three phone logo

How Three Pay by Phone Casino Deposits Work

  1. Select “Pay by Phone” (may show as 3Pay, Boku, or Pay via Mobile).
  2. Enter your Three mobile number and deposit amount.
  3. You’ll receive an SMS from short code 65083 or similar – reply “YES” or use the PIN displayed.
  4. Funds appear in your casino balance instantly.
  5. The charge is added to your next Three bill or taken from PAYG credit.

Three Pay by Phone Casino Limits & Fees

Which Three Plans and MVNOs are supported for pay by phone bill deposits?

Works on Three Pay Monthly (Contract), PAYG, and MVNOs using Three’s network (Smarty, ID Mobile). Premium billing is enabled by default; PAYG users need enough credit.

Using Three Pay by Mobile in UK for Casino Deposits

Three is one of the UK’s major mobile networks and can be used to fund your casino account via pay by phone bill at many UK-licensed casinos. Below is a quick Q&A covering everything you need to know before you deposit.

Can you use Three Pay for casino deposits in the UK?

Many UKGC-licensed casinos accept deposits from Three customers through pay-by-mobile platforms such as Payforit or Fonix. Always check the casino’s cashier or help section to confirm support before depositing.

How do you make a deposit with Three Pay

Select Pay by Mobile (or Pay by Phone Bill) in the casino cashier, enter your Three mobile number and the amount (usually £5 – £30), then confirm the SMS you receive. The funds appear instantly in your casino balance and are charged to your next phone bill or deducted from prepaid credit.

Does Three itself authorise the payment?

No. The authorisation is handled by the pay-by-mobile service provider (e.g. Payforit/Fonix) in partnership with the casino. Three simply adds the approved charge to your bill.

What are the deposit limits with Three Pay?

Typical limits are £5 – £30 per transaction and a monthly cap of around £240, in line with UK mobile-payment regulations and responsible-gambling policies.

Withdrawing winnings back to your phone bill

Withdrawals must be made via alternative methods such as bank transfer, Skrill, or Neteller.

Fees when using Three for casino deposits?

Casinos rarely add fees, but your mobile network may apply a small service charge. Check with Three and the casino’s banking terms to avoid surprises.

Why might a deposit fail even if I’m on Three?

Acceptance depends on both the casino and the payment platform. If a site or provider doesn’t currently support Three, the deposit will be declined. Verify support with customer service before attempting a payment. Our pay by phone casino troubleshooting guide should also have some answers.

Three Pay by Phone Casino deposits conclusion

Three’s 3Pay system piggy-backs on the same Payforit rails used by the other big carriers, yet it has a couple of quirks seasoned mobile gamblers appreciate. Because Three’s core customer base skews younger and data-heavy, the network keeps header-enrichment enabled on virtually every tariff.

On the downside, Three’s default personal Spend Cap is set to £0 during SIM activation; if you forget to slide it up in the Three app, every Boku/Fonix attempt will fail with no clear error message. Once you raise the cap to £40 (or whatever limit you prefer), 3Pay runs smoothly.

How Three Compares with EE, O2 and Vodafone

In short, choose Three if you value rapid “one-tap” deposits and don’t mind adjusting a spend slider first; opt for O2 for granular self-control, EE for pure speed with minimal setup, and Vodafone once your new account has cleared its bedding-in period.

Summary table for Three Pay pay by phone bill deposits

Aspect Three (3Pay) Pay-by-Phone Casino Deposits (UK)
How it works
  1. Select Pay by Phone / 3Pay / Boku / Fonix in cashier.
  2. Enter Three number & amount (£5–£30).
  3. Confirm via SMS (reply “YES” or enter PIN).
  4. Balance credited instantly; charge added to next bill or deducted from PAYG credit.
Limits £5–£30 per transaction · £40 daily · £240 monthly (industry standard).
Fees No fee from Three; most casinos fee-free—rare brands pass on ~15 % surcharge (check T&Cs).
Supported plans Three Pay-Monthly, PAYG, Smarty, iD Mobile (Three MVNOs) with premium billing enabled.
Speed Instant credit; one-tap approval on 4G/5G via header enrichment (fastest with EE).
Spend-cap quirk Default personal Spend Cap set to £0 on new SIMs—raise it in Three app or deposits fail silently.
Security & privacy SMS 2FA; no card/bank data shared with casino.
Withdrawals Not to phone bill; cash-out via bank transfer, Skrill, Neteller, etc.
Bonus eligibility Most UK casinos count Three deposits toward welcome & reload offers—verify T&Cs.
Strengths Rapid “one-tap” deposits on data; card-free; low caps aid budgeting; flexible in-app spend slider.
Weaknesses £40 cap unsuitable for high rollers; no withdrawals; new SIMs blocked till cap raised; possible casino surcharge.
Ideal for Mobile-first players wanting fast £10–£30 top-ups and willing to adjust Spend Cap before first deposit.

Chris Vaughan
Chris Vaughan Senior Writer & Editor
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Chris Vaughan is a Senior Writer and Editor at GamblingAuthority. He has more than 18 years of experience in the iGaming industry and has great knowledge of game developers, trending games and casino research.

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Last Updated: 10 June 2025