Well thank you for finally telling me. I guess you really will need to leave it up to the trouble ticket, though I hear their response time is pretty bad...
strange... when you changed the birth date, did you change it, save it, then change it back? or just toggle the menu in one go without loading another screen?
Unless it doesn't work. but you could at least try :I
I honestly doubt it will EVER reset on it's own. your registered as a child account, and you need to manually change that.
Sorry about that :I