Nostalrius Begins - Quality wow vanilla realm (1.12)

Recently i was playing nostalrius begins, and as the server was getting ddos'ed i was kicked from the server. At this i was in skype with a few friends that were also playing; they logged in a few minutes later perfectly fine...I didn't have as much luck as they did. As soon as i tried to log in, a message that said "This World of Warcraft account has been closed and is no longer available for use. Please go to http://www.worldofwarcraft.com/misc/banned.html for further information." The character I was playing with at the time was Dredknot. I would really appreciate if you could give me some help to restore my account as I hate the alternate to playing WoW which is retail and i despise retail.

Thank you,
Gergoth21