received message saying email account locked/suspended and need security key to open. request key but is sent to email account that was an old works email that is now defunked.  tried answering security questions but can't supply enough data to unlock account.  problem now having is that all my other logins send password info to locked email account so can't get onto them either.  BTW this is my Dad's email account and he's in his 70's so can be excused for forgetting passwords.  any suggestions gratefully received.