Pay by Mobile Slots: Ultimate UK Guide (2025)

Chris Vaughan
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Last Updated:

Pay by Mobile slots allow UK players to easily deposit into their online casino account using their mobile phone bill or pay-as-you-go credit. This method offers simplicity, instant transactions, and enhanced security, ideal for mobile-focused players.

Smartphone screen displaying Pay By Mobile Boku option

How Do Pay by Mobile Slots Work?

  1. Select "Pay by Mobile" at your casino cashier.
  2. Choose your deposit amount (usually between £5–£30).
  3. Enter your UK mobile number.
  4. Confirm via SMS sent to your phone.
  5. Your deposit is instantly credited to your casino balance.

Why Slot Players Prefer Pay by Mobile:

Top UK Casinos Accepting Pay by Mobile (2025)

Special InformationCasinoCapabilitiesBonus InformationLet's Play!More Information
1
888 Casino

888 Casino

Total Bonus

£200

0 Free Spins

  • Wagering

    30x (B)

    - (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.8 / 5

Terms and Conditions#Ad • 18+ • First-time depositors • Min deposit £10 • Claim within 48 hours • Expires in 90 days • 30X wager... Read more
888 Casino ReviewLet's Play!
2
666 Casino

666 Casino

Total Bonus

£66

66 Free Spins

  • Wagering

    35x (B)

    - (Free Spins)

  • Minimum Deposit

    £20

  • Review

    4.78 / 5

Terms and Conditions18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanz... Read more
666 Casino ReviewLet's Play!
3
Duelz Casino

Duelz Casino

Total Bonus

£100

100 Free Spins

  • Wagering

    30x (D+B)

    45x (Free Spins)

  • Minimum Deposit

    £20

  • Review

    4.77 / 5

Terms and Conditions18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering r... Read more
Duelz Casino ReviewLet's Play!
4
Admiral Casino

Admiral Casino

Total Bonus

£0

100 Free Spins

  • Wagering

    - (Cash)

    1x (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.75 / 5

Terms and Conditions18+. New customers only. 50 free spins on Feel the Flutter on registration & 50 free spins on Sizzling Hot d... Read more
Admiral Casino ReviewLet's Play!
5
Gala Casino

Gala Casino

Total Bonus

£40

50 Free Spins

  • Wagering

    40x (B)

    0x (Free Spins)

  • Minimum Deposit

    £20

  • Review

    4.74 / 5

Terms and Conditions18+. New customers only. Spend £20, get £40 bonus (40x Wagering, selected games) + 50 Free Spins (value £0.1... Read more
Gala Casino ReviewLet's Play!
6
Ladbrokes Casino

Ladbrokes Casino

Total Bonus

£30

0 Free Spins

  • Wagering

    40x (B)

    - (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.72 / 5

Terms and Conditions18+. New Casino players only. Deposit required. Bet £10+ on qualifying games. 40x wager reqs (bonus only) on... Read more
Ladbrokes Casino ReviewLet's Play!
7
Betfair Casino

Betfair Casino

Total Bonus

£0

50 Free Spins

  • Wagering

    - (Cash)

    0x (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.71 / 5

  • Use Bonus Code
    CASF51
Terms and ConditionsNew customers registering with code CASF51 only. Free spins valued at 10p. After you've played your initial ... Read more
Betfair Casino ReviewLet's Play!
8
LeoVegas Casino

LeoVegas Casino

Total Bonus

£0

50 Free Spins

  • Wagering

    - (Cash)

    1x (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.67 / 5

Terms and ConditionsNew cust only. Opt in & deposit £10+ in 7 days & wager 1x in 7 days on any eligible casino game (excluding l... Read more
LeoVegas Casino ReviewLet's Play!
9
William Hill Casino

William Hill Casino

Total Bonus

£0

200 Free Spins

  • Wagering

    0x (Cash)

    0x (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.65 / 5

  • Use Bonus Code
    B10
Terms and ConditionsNew customers using Promo code B10 only. Opt in required. 1x per customer. Big William Hill Fortune only. Mi... Read more
William Hill Casino ReviewLet's Play!
10
All British Casino

All British Casino

Total Bonus

£100

0 Free Spins

  • Wagering

    35x (B)

    - (Free Spins)

  • Minimum Deposit

    £20

  • Review

    4.62 / 5

  • Use Bonus Code
    welcome100
Terms and ConditionsWelcome bonus for new players only | Maximum bonus is 100% up to £100 | Min. deposit is £20 | No max cash ou... Read more
All British Casino ReviewLet's Play!
11
Mega Casino

Mega Casino

Total Bonus

£50

0 Free Spins

  • Wagering

    30x (B)

    - (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.6 / 5

Terms and ConditionsAutomatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10, m... Read more
Mega Casino ReviewLet's Play!
12
777 Casino

777 Casino

Total Bonus

£200

0 Free Spins

  • Wagering

    30x (B)

    - (Free Spins)

  • Minimum Deposit

    £20

  • Review

    4.55 / 5

  • Use Bonus Code
    WELCOME777
Terms and Conditions1st deposit only • 14 day expiry • FreePlay (FP) wins credited as bonus & capped at the amount received • Va... Read more
777 Casino ReviewLet's Play!
13
King Casino

King Casino

Total Bonus

£150

50 Free Spins

  • Wagering

    35x (D+B)

    35x (Free Spins)

  • Minimum Deposit

    £20

  • Review

    4.52 / 5

Terms and Conditions18+. New Players Only. Min. deposit £20. UK players. Max. bonus 1st deposit 100% up to £50 and 2nd deposit 5... Read more
King Casino ReviewLet's Play!
14
Party Casino

Party Casino

Total Bonus

£0

50 Free Spins

  • Wagering

    0x (Cash)

    10x (Free Spins)

  • Minimum Deposit

    £10

  • Review

    4.5 / 5

Terms and Conditions18+. New depositors only. UK residents only. Minimum deposit £10. Free Spins are valid only on Big Bass Spla... Read more
Party Casino ReviewLet's Play!
15
Grosvenor Casino

Grosvenor Casino

Total Bonus

£30

0 Free Spins

  • Wagering

    30x (B)

    0x (Free Spins)

  • Minimum Deposit

    £20

  • Review

    4.49 / 5

Terms and ConditionsNew Customers Only.Min Deposit and Max Bonus apply.Playable on selected games.Wagering requirements apply.Ma... Read more
Grosvenor Casino ReviewLet's Play!

Showing 15 / 76

Starburst (NetEnt): RTP 96.1%, Low volatility. Frequent small wins, ideal for casual players.
Rainbow Riches (Barcrest): RTP 95%, Medium volatility. Classic game with balanced payouts.
Big Bass Bonanza (Pragmatic Play): RTP 96.71%, Medium volatility. Engaging bonuses popular with mobile users.
Gonzo’s Quest (NetEnt): RTP 95.97%, Medium-High volatility. Exciting cascading reels.
Book of Dead (Play’n GO): RTP 96.21%, High volatility. Potential for large wins with high risk.

Starburst Slot reels

Real-World Case Study: Pay by Mobile Slots at MrQ Casino

We personally tested the Pay by Mobile deposit process at MrQ Casino for accuracy and ease of use:

Step-by-Step Deposit Example:

00:00 – Logged into MrQ via mobile browser.
00:20 – Chose "Pay by Mobile" and entered £10 deposit.
00:40 – Provided O2 mobile number and initiated deposit.
00:50 – Received SMS verification and replied "Y" to confirm payment.
01:00 – Deposit instantly reflected in casino balance, available to play.

Slot lobby at MrQ Casino

Case Study Highlights:

For further details, check out our complete MrQ Casino Review.

UK Pay by Mobile Slots Providers & Limits (2025)

Provider Min Deposit Max Daily Max Monthly Withdrawal Available?
Boku £10 £30 £240 No
Payforit £5 £30 £240 No
SMS Billing £3 £30 £240 No

Gambling Authority Final Verdict

Pay by Mobile slots offer unmatched convenience and secure deposits for UK players, especially ideal for casual or mobile-first slot enthusiasts. Depositing with a phone bill, whether Pay as You Go or Contract, is easy and quick. Its simplicity, security, and responsible gaming features make it a top choice for fast and safe casino payments.

Pay By Mobile Slots FAQs

Yes — you can trigger free-spin bonuses with a Pay-by-Mobile deposit, provided the casino’s bonus terms list phone-bill payments as an eligible funding method. Most UK sites that support Boku, Fonix or Siru credit free-spin packages automatically once your deposit clears, but a minority exclude carrier-billing because the operator absorbs a 10–15 % processing fee.

Tip: MrQ, PlayOJO and Hyper Casino are fee-free examples where £10 phone-bill deposits do unlock their standard free-spin offers, while Monster and 666 Casino currently deduct a 15 % carrier fee and therefore block spins on Pay-by-Mobile payments. Always read the small print, but in most cases the spins will land as soon as your mobile-billed funds hit your balance.

Yes, your funds can be used on all available slots.

Reputable online UK casinos charge no fees. Always check the terms.

Typically, yes. Most casinos fully include mobile deposits for promotions.

Withdrawals require an alternative payment method like bank transfer or PayPal.

Chris Vaughan
Chris Vaughan Senior Writer & Editor
35 Articles 0 Reviews

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: 12 May 2025