I called AT&T a second time last night, and after waiting a while for the rep to look, he told me that he didn't have the U200 code in his system. Then he told me that I should contact the premier account department (800-845-9681). I called them today and asked the premier services rep to add Code U200 to my account. She asked me where I heard about that code and asked me what it was. She then put me on hold, and came back and said, "Sorry, that is a bogus code that is circulating out there."