Why can't I change my date of birth on my apple ID?
My brother and I used to share apple ID, and it was registered on him, now when he doesn't use apple products anymore (long story) he gave it to me to use for myself. Problem is though, I can't update my date of birth. I can change everything but that. Everytime I try to update it a window puts up asking if I want to save the changes, I click 'yes' but still nothing happens. what is the problem?