I was heading into Undercity on my rogue and I got randomly d/c. When I tried to relog I got this message "Your world of warcraft account has been closed and is no longer available for use".
Character Name: CovertCoding Realm: Nostalrius Begins PvP
Read the stickies, wait 15-20 minutes and try to log in again, and log into your account on Nostalrius homepage (wont have to wait with this one) and check your profile there.
Try to restrict the use of public chat channels on characters less than level 15, as there is an automatic spam prevention system in place to reduce the amount of gold seller spam that we are plagued with.