So it is not good to have funds coming from an gambling site? I wanted to know how these exchanges such as this latoken can marked one account with transactions as illegal. How did they found out since blockchain is really broad. Unless their using the info of him and check out as wanted somewhere. But is this legal? That's why KYC is dangerous who knows what are they doing with our info. Sorry to hear with OP's case.
Actually, I don't think there is any exchange that allows funds from gambling sites. It's on the terms of service but since no one reads that, it's hard for people to know, not until things go wrong anyway.
Also, it's very easy for an exchange to know if your funds are coming directly from a gambling site. The site's hot wallet will most likely be known to the public. An easy way to avoid this would be to use a mixer.