Put wrong date of birth

I was trying to delete a character but didn't work because of incorrect date of birth.
I think i put wrong date of birth when i was making the account.
is it possible to change the date of birth? if not, is it possible to find out what date of birth i put?
Thank you very much

 

Jumping on this thread because I also put in my birthday wrong apparently. All of my character slots are full and I can't delete the ones I don't need because of a simple mistake.

 

Same here! I just don't want to lie about my age on my page!