How can I get my new iphone 5c to work? I bought it for xmas, and was told to go to the online self serve area and put in my new sim card #. Now my new phone and old phone don't work. eeeeek! For the record, they did offer to do it at the kiosk but my time was limited and I couldn't do it. I can't go to work tomorrow and not have a phone so the kids can reach me if needed. Please help.