Hey Eric,
Call your credit card company and tell them NOT to let them bastards charge any more, (and to reverse the charges) Offer to send the emails or snail mails you have sent.
I have heard AOL does this also. and then, if THAT doesnt work, put your shit kickers on, and lets visit the office... Oh, and I am taking pics!!!!!
also , it may be a good idea to cancel that account (the more I think about it) if someone signed you up... you could have other things start to show up.