AT&T multi-phone family plan. I am NOT the account holder, my brother is. My line is long due for an upgrade. My current phone is the 6 Plus, purchased in October 2014 through AT&T Next. It's paid off and I'm gonna upgrade to the X. My brother gave me the go-ahead to pre-order on MY line, but what I'm asking is what is all the information (such as passwords, numbers, info) I will need ready to go when I pre-order on the 27th at midnight? Does he need to contact AT&T PRIOR to this for any reason to get an upgrade or will it be automatic? I can still use MY credit card even though he's the account holder, right? What I want to avoid is needing some bit of info from the account holder that I don't have, and I can't call him up and wake him up @ midnight because of my iPhone obsession. pls clear this up for me guys. thank u.