"Your account has been banned permanently."

I went to poop in Alterac Valley, and when I came back I was logged out and my account now seems to be banned.
I was only afk for about 4 minutes. Can I get a review of what happened or appeal this ban? This is the first time anything of this sort has happened, and I have not been contacted by a GM prior to the ban.
I was only afk for about 4 minutes. Can I get a review of what happened or appeal this ban? This is the first time anything of this sort has happened, and I have not been contacted by a GM prior to the ban.