I made a gamertag for my 7yr cousin and had his aunt set everything up for him. Well went ahead and bought a Family pack gold membership and put his gamertag on it. Fast forward to now somewhere down the line it started asking him for a email and password to sign in. So I tried 3 different emails that might be the email that is suppose to work for that account. Well 1 is for old canceled account, one says it news and needs to be activated and attached to a gamertag, and the last one says there is it's not part of any account at all. This is what happens when I try going onto xbox.com with one of those 3 email accounts. So my question is, is there a way with knowing the gamertag we can track down the email that is attached to that gamertag?