I made a second account for friends and family to use on my Xbox One. I went to change the gamertag and it appeared to have gone through. Later that night, I signed into the account and it still has the Microsoft generated gamertag (Adjective-Noun-Number). Whenever I try to change it back to the same gamertag I had chosen before, it says it's reserved and I can't use it, despite the fact I had changed my name to it earlier that day. Whenever I try to find the account with the name I want, it says the user cannot be found. I find it extremely unlikely that someone took the name, and then got banned within hours of me attempting to change my name. Any ideas on how I can fix this? Or, have I taken up a gamertag without even changing my name?