Did they ask for the KYC when you were depositing funds ? No right most of the times this happens and problem is that you used a VPN ofcourse which will end up against their rules and regulations causing your winnings and everything to go, they won't be allowing you to withdraw anymore as well since this would be against their policies. What you can do is ask some friend of yours from other country where the crypto is legal to do that and this can actually work only if they don't suspect it but then again be would be making the bets on your behalf much like a third party which is again scary to trust regarding so much money.