When I hit the upgrade button, I am taken to a list of my lines and I can check which lines I want to upgrade. I want to do 2 lines, one getting a 32g and one getting a 16g. How exactly does it work to upgrade 2 lines at once?
You pick a line add the phone to that number, then go back and add another phone for another number. They will both have clean ESN's when you get them, so theoretically all you have to do is activate the 32 for you and 16 for someone else.