Full Tilt Poker: The account has already been entered by another user. Please contact support if you are sure that it is yours. Please give us the account name which you wanted to fill in, as well as the corresponding poker room.

First i downloaded pokerstars then that was denied by pokerstars, and support tells me to download another poker but in no this problem!, i made a ticket to support but, every day i have to explain all over becouse there are different supports