I don't know whether this is some kind of fraud or not but it seems that before playing you already know what the minimum withdrawal amount is before making a deposit and playing. It looks like you have a deposit bonus that has wagering requirements, you need to check it again on your account.
But if you don't follow the promotion of the site at all, people should avoid this site, I think also withdrawing in large amounts like that doesn't make sense for gambling sites.
I did not participate in ANY promotion, did not use ANY bonus code. It is my money, plain and simple. Yes I could have noticed the completely absurd 100usd min withdrawal, but thats like saying that they give you a fake deposit address and that if you use it, your funds are gone. Bottom line is, I deposited a non-trivial amount, tripled it, and now they dont want to let me withdraw.