Eeeeek. Sounds like it enrolled you in a monthly payment plan. Just like when you text "blah blah blah" to "blah blah blah" for free ringtones, graphics, jokes, and whatnot. I read an article saying it's nearly impossible to get rid of, even the phone companies can't really do much about it because of legal agreements and the notorious nature of these shady companies. I never thought that maybe replying back to a text could get someone into that much trouble. It would be like calling back a 1-900 number, except they keep charging you every month. I seriously hope that your AT&T rep knew what they were talking about and you won't get charged again for next month.