I ordered Saturday morning when the website wasnt slammed and I had the option to add it to my next bill. I dont think it's a glitch, I think it's just a new way to entice people to upgrade/order new devices. I bet there were loads of people who ordered and added it to the their bill who didn't get paid for a couple of days/week/or following month. When I had TMobile while I was in college several years ago they offered to let you pay for your device by adding it to the next bill. It allowed me to save up for a month to buy higher end phones.