I got banned because someone stole my account

Hey i tried to send a ticket multiple times but this message always pops up and i can't do anything about it does someone know why this pops up and i can't even try to get my account back. Similar thing happened to me. Someone stole my account and used cheats and know as I'm trying to get my account back this message pops up everytime i want to send a ticket. I would really appreciate help.