Hey, you already got an explanation regarding your case by the support team.
Our sports fraud team flagged your account for abusing odds in an unfair manner ("value betting") which violates our Terms of Service. This is a common practice and policy on every major sportsbook provider.
You were informed about the decision and your account got locked because of that. Of course you were able to withdraw your initial deposit amount.
EDIT: just checked your account again and you deposited a total of $8,263.83 withdraw a total of $9,591.97 so are even in profit on our casino.
It seems to me that you came up with value betting, because the provider is unlikely to mark someone's accounts in such a manner. And what does value mean? Your eSports provider takes odds from another larger provider that supplies the same odds to other bookmakers. It seems that you are another fraudulent casino, of which there are a lot here.