The OP has not returned on this thread so we have no idea what happened here.
But more than likely, it may be his ISP as he is not included in the blacklisted country of the site.
He needs to clarify things first before pushing himself to use the site.
Because he may just lose his funds if he will try to play on the casino that he likes via VPN.
We really never know until he confirmed it, we offer a lot of solutions on how to solve his issue, he should not hurry to sign up and play there's an existing thread here that violated the TOS of the gambling, and his funds are locked and he is totally aware of his violation, you'll regret this later if you did not first confirm first, I prefer asking support it's better to get the answer straight from the casino.