Couldn't get much help anywhere so I thought I would start a thread for authorized users here. I am an authorized user, but want to add a line for an iPhone. My local store says I could do this as long as I had the account holder's SSN. Can anyone here relate to this? The account holder won't be in the country from now til September so what can I do? I'm thinking about just doing it online if it is possible, adding a line.