Forgot questions

The only way you'll be able to deal successfully with being unable to answer your security questions satisfactorily is to have your receipt for the purchase of a pertinent device from an authorized Apple seller with its serial number on it. Locate you receipt if you have it, and see the support options Eric Root provided.

Try

Get Support          Work through the screens to get a chat option. 

or

https://twitter.com/AppleSupport.          People have posted it may take an hour or more to get a response.