The terms are demanding. Wagering is 50x the deposit plus the bonus, free spin winnings also carry 50x, the maximum bet is €3 while a bonus is active, and the wagering has to be completed within 7 days. Only one bonus can be active at a time, and the welcome terms set no cap on winnings.
The Crypto Wave Bonus gives 150% up to €100 on a crypto deposit, once per player and from the second deposit onwards, and Return of the Wave is a 50% reload up to €100, available once a week from Monday; both use the same 50x, €3 and 7-day terms. The weekly loyalty cashback pays 8% to 15% on the previous week’s activity, credited on Monday at 12:00 UTC, with a €5 minimum, 5x wagering and winnings capped at 10x the cashback. Level-up rewards range from €20 to €500 plus 50 to 500 free spins per level, at 30x wagering with the same 10x cap, and Tell a Friend pays up to €50 per invited friend, with €10 for the friend. A birthday bonus opens from the Captain level, with no amount published.
The loyalty programme has six levels: Sailor (8% cashback), Boatswain (9%, €20 and 50 free spins), Captain (10%, €50 and 100 free spins), Admiral (11%, €100 and 200 free spins, a VIP manager and upgraded withdrawal limits), Triton (13%, €250 and 500 free spins) and Poseidon (15%, €500 and a customised VIP bonus). The Welle VIP Club sits above these levels with a dedicated VIP manager, personal payout limits, exclusive bonuses, weekly cashback of up to 25%, priority support and withdrawal approval within 15 minutes; no entry threshold or number of tiers is published.