This account has been closed.

I have an account that has literally not been played in over a year. Any way one of you nice blues can look at it and tell me what happened with it, how do I go about getting it back, etc? Any info is appreciated. When you try to log in it says. " This World of Warcraft account has been closed, and is no longer available for use.

One of the chars on the account is:
Paacazullu on the Kilrogg server