"Once your birthday has been entered, it cannot be changed. Please contact an administrator if it is incorrect."
Message someone like @Timppali, @Teddzy or another listed Administrator in “Staff” and send them a Direct Message saying that your Birthday is wrong and needs changing to [Insert Birthday here]. I’m not totally sure if Admins can change Personal Details on the Forums, however I assume that they would be able too. Hope this helps.
this is correct; however, admins most likely wouldn't as they are all busy bees. once you set your birthday, you cannot change it on xenforo sites (the site mcc uses for forums). as when you make an account, xeforo warns you and it also tells you if you were to try and edit it (you can sorta see in the last screenshot of this post) how can however hide it.. here's how: *hover your curser of your profile name (but dont click) - a "drop down" will appear, move your curser to personal details n' click it. then it'll take you to the screen to manage your personal info. scroll down and you can unclick the check boxes that say whether or not you'd wanna display it or na'. hope this helped! have a great dat! ~puposaurus