They have own forum but who knows if I will find answer on their casino and how much waste time to maybe even not find a answer after so much wasted time.
If they refuse to give the bonus after complying with the rules, then it can be a scam casino.
Try to reach out to their support, or try to do some research about that site and you might see similar situation. This is why I always gamble on a reputable site, as those small casinos have their unrealistic promotions just to attract gamblers, and don’t have the plan to release the reward at all.