Locked WoW accounts

Somehow, I got both mine and Mathew's accounts on World of Warcraft temporarily (24 hours) locked. We can't log in at all. I think it has to do with being over here or something, or possibly a mod I have. I don't know yet and I can't call them for another 5 or 6 hours to try and figure it out. Mathew's pissed. :-(