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.
we have to consider alot of things before declaring them scam, although their trust profile already has a red tag to it and the offense is on something similar to this also which is why we may have some level of doubt in the casino to be possible scam, although we have learned that many casinos already owns the right to paythey referral earners whatever amount they think is ok for them.
I think before the account is enrolled in their referral system, they have the binding terms and agreement to agreed with. If the casino is not delivering what is promised then it is fall under fraud. Since we do not have enough knowledge on how the affiliate system of Wintomato works, we can only speculate. Hopefully the representative of the said casino give us some lights by replying on this thread.
I think there should be a fixed amount in payment for referral earnings this way it will solve the crisis of payment infractions such as this case.
Regardless, the casino should be bound by its own terms and should not modify or change it abruptly without prior notice. This way the people who are in the affiliate system won't be surprised or caught unaware about the changes.