Yes I’ll be honest. It was a message like that that I had received. So I created a new account. It happened twice. But even so that does not give them a right to not reply to any of my messages and steal such a large amount of funds
How much did you win with your first two accounts? If it's >= 1.5 BTC then I don't think you have much of a case. You tried to cheat bypassing a limit placed on your account.