http://www.mileageworkshop.com/phone.html
The code for American Airlines is Z25A. The rest are posted at the link above. He did offer me the 10K and said that the 25K promo expired. I just stated that I wanted the same deal, 25K per phone number or I would switch. He and his supervisor understood that if they wanted to keep me, I wanted 25K and knew all I had to do was switch for one month and go back to MCI. Why fool around, just delete my account, start fresh again, and I stay with MCI then we're both happy. It worked! Now to see if they post!