Of course it’s real, you can check it yourself.
NDB team =)

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Hello
Free spins bonuses (MERMAID50, WILDEST50, MARIACHI50) are good for for slots & keno only. Spins come with a $100 maximum cashout and can be redeemed 1x per player. Bonus amount is considered non-cashable and will be removed from the amount of your withdrawal request. Bonus Spins will be credited automatically upon redemption of coupon code. You must play all of the Spins before moving on to another game. Bonus Spins come with 10x additional wagering requirements. No multiple accounts or chip redemptions in a row. Unless noted, standard rules apply. 25FREECHIP bonus does not require a deposit. The bonus comes with a 30X wagering requirement for Slots and Keno and 60X for table games and video poker (except Baccarat, Craps, Pai Gow Poker, Roulette, Sic Bo, and War). Maximum withdrawal from this bonus is $100. Unless specifically stated otherwise, standard rules apply. No multiple accounts or chip redemptions in a row. ❤️❤️❤️