18+ only · Play responsibly
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Deposit £20, Get a £40 Bonus + 100 Free Spins on Big Bass Splash

Wagering:10×(deposit + bonus combined)Min deposit:£20Max bet:£5Valid for:30 daysNew players only
Terms verified 17 days ago by Check.casino Editorial

18+ only. Gambling can be addictive — please play responsibly. BeGambleAware.org.

Operator T&Cs snapshot

Captured by our editors at time of listing. Operators can change terms without notice — always verify on the live operator page before claiming.

This promotion is managed by Grosvenor Casinos. New customers only. Not available to players whose first deposit is made via PayPal or Paysafe. To claim, select the welcome offer in the cashier (it will highlight purple), then make a minimum first deposit of £20 or more. Your £40 bonus is credited instantly to your bonus balance, giving you £60 to play with. By claiming this offer you will no longer be eligible for any other welcome offer on grosvenorcasinos.com. The qualifying deposit (£20) plus the bonus (£40) must be wagered 10 times before any winnings can be withdrawn from the bonus balance — total wagering requirement £600 (£20 + £40 × 10). If you hold an active cash balance, all wagers are deducted from that balance first, followed by your bonus balance. When a wager uses a combination of cash and bonus funds, any winnings are credited proportionately. The bonus may only be used on selected games; play on those games counts towards the wagering requirement. The maximum amount that can be converted from bonus to cash is £200. Players have 30 days from the date the bonus is credited to complete the wagering requirement, after which any remaining bonus and associated winnings will be forfeited. The 100 Free Spins are available exclusively on Big Bass Splash. To receive them, players must launch Big Bass Splash; they then have 24 hours from launching the game to click 'Play Now'. Once claimed, Free Spins must be used within 7 days or they expire. Each Free Spin has a value of £0.10 and has no cash value. Any winnings from Free Spins are credited as a bonus and are subject to a 10× wagering requirement, playable on Big Bass Splash. Players using minimal-risk wagering tactics risk forfeiting their bonus, cash prizes and any associated winnings. Grosvenor Casinos reserves the right to void, withdraw, cancel, suspend or amend the promotion where necessary, without prejudice to any participant who has already placed a qualifying bet. This promotion is governed by English law.

7.7
out of 10
Great
Check.casino bonus score

Great welcome bonus. 10× wagering on deposit + bonus is the standout. No major red flags in the terms.

  • Wagering: 10× wagering on deposit + bonus
  • Value: 200% up to £40 + 100 spins
  • Validity: 30 days to use it
  • Min deposit: £20 to qualify
  • Max bet: £5 max bet while wagering

A fixed formula on this offer's verified terms — wagering (38%), value (26%), validity, min deposit & max bet — not an opinion. Always confirm the current terms with the operator before claiming.

Bonus terms — fairness check

Fair terms

No high-risk clauses flagged in the terms we hold — standard, player-friendly wording.

Auto-flagged from the operator's own bonus terms (quoted verbatim) — not legal advice. No flag means our checks found none in the terms we hold, not that the terms are perfect. Always read the full T&Cs.

Bonus terms in full

Bonus type
Welcome
Max bonus
£40
Match
200%
Free spins
100
Wagering
10× (deposit + bonus combined)
Min deposit
£20
Max bet during wagering
£5
Eligible games
slots, live-casino
Validity
30 days
Eligible countries
GB
New players only
Yes
Minimum age
18+
Play responsibly

18+ only. Gambling can be addictive. Set deposit and time limits before you play. Visit BeGambleAware.org for free, confidential support, or call the National Gambling Helpline on 0808 8020 133.

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