How do i change my age on Xbox live?

I got an Xbox when i was 15 and now im 18, you would think xbox would be smart enough to change your age on its own? well for three years i havent been able to play madden because it says im to young.... how the hell to i change this? thanksHow do i change my age on Xbox live?WAT!! u cant play madden thats rated E well it should have updated your age when you turned 18. You should call xbox to see what they can do.

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