My mom has an iPhone 1G and she is eligible for 3GS upgrade. I have a RAZR and am not eligible for a 3GS upgrade. They screwed up my upgrade reversal when I returned the 3G last year and I gave up trying to make them fix it. How do I go about doing this upgrade swap? I want it to end with my mom having an iPhone 1G with her original plan and # and me with an iPhone 3GS on my #.