His parents changed his age as he was creating his forums account.
Anyways, just follow exactly what @angyma said and the issue should be resolved soon. I'll leave the thread unlocked for now just incase you have any further questions.
Your parents probably don't want your real information to be public.
Like age, birthday, name, etc. So in that case doesn't seem like a bad issue.
Some parents are overprotective so that might be the case.