20Bet Casino Secret Bonus (Thursdays Only) – Every Thursday holds a surprise. Make a qualifying deposit and receive a mystery bonus—revealed only after you deposit.
Bonus Breakdown
- Offer: One mystery bonus per week
- Availability: Every Thursday (00:00–23:59 UTC)
- Eligible From: Your 2nd deposit onwards
- Minimum Deposit: €40 (single transaction)
- Wagering Requirement: Varies depending on the bonus
- Bonus Activation Window: 3 days
- Wagering Period: 7 days
Possible Rewards
One of the following surprises will be randomly granted:
-
- 50% match bonus up to €100
- 100 Free Spins
- 40 Free Spins with just 5x wagering
- 30 Free Spins with a higher per-spin value
- 300 Free Spins across 5 slots of your choice
- 200% match bonus up to €500
- €100 no-wager cash bonus
- €5 Free Bet (min 3 selections, min odds 3.0)
How to Claim
- Log in on a Thursday
- Choose the Secret Bonus Card in the deposit window
- Make a €40+ deposit in a single transaction
- Your random reward is added automatically
Other Important Terms
- Free spins are credited to a slot game you select from a pre-approved list
- You must activate the bonus within 3 days of receiving it
- After activation, you have 7 days to meet any wagering requirements
- General bonus terms apply to all offers
Deposit on Thursday and uncover a reward—what will yours be?
Strictly 18+ ONLY. Terms and conditions and wagering apply.
More 20Bet Casino Bonuses
Check out more bonuses from 20Bet below or view All Bonuses and 20Bet Casino Review here.
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20Bet Casino Weekly Reload Bonus – Get 50% to €100 + 50 Free Spins!
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