Permanently banned, what did I do?

I was playing Alterac Valley with my character named Druggie, and suddenly i DC'ed. Then it says you have banned me permanently? I would like to know what I did wrong. loved that character, played every single day..
Also if someone was hacking it and I can't get it back what so ever - Is it possible that i can make a new character on a new account with the banned characters name? Like you delete it for good or something so i grab my name on the new character.
Regards
Also if someone was hacking it and I can't get it back what so ever - Is it possible that i can make a new character on a new account with the banned characters name? Like you delete it for good or something so i grab my name on the new character.
Regards