I wish to edit my iCloud account as I have changed my email address. Help please

[iMore Question]

I have tried to get into my account but it tells me I am locked out .
It then asked me to enter my birthday to unlock it .to which it answers this is the wrong information

."I don't know my own birthday " ? Can you help

 

[Tartarus]

Your only option is to change your password via http://appleid.apple.com or http://iforgot.apple.com or by contacting http://support.apple.com