I am the owner of 3 xbox 360 consoles and all of a sudden my son's account stopped working. I had to sign in as the adult but it wouldn't let me until I proved I was an adult. As long as my son't account is linked to an account that Microsoft autocharges for XBox live subscription every year, I shouldn't have to pay anything to prove who i am. Why did I have to do this? I went through the exact same thing this past summer except I didn't have to pay to get his account unlocked.