forgot my apple id birthday

Hi,

If your Apple ID is locked or disabled - Apple Support

If necessary, there is a contact link.

Apple ID Support

Apple ID Support (2)

Apple Support by e-mail or chat Select your device, Battery, Power and Charging, then Power adapter not working to get a chat option. If you need to talk to them, ask them if they will do a Skype or FaceTime with you.

Apple Support using Twitter

Or fill out and submit this form.

Yes... that's why I posted the link for you for instructions on how to restore your Apple ID.