The email address was changed recently,so it made a doubt in my mind that the real owner of that account locked the account when someone hacked his account.
BTW you already verified the message from old address so wait for the reply from the one who can unlock your account but there are huge number of people in the queue before your account to get their account back even after proving the ownership.
Depends, if we have a change of password before that message... I think mods or global mods can check if OP account has a password's change before posting that address.