Cannot access old pacbell.net account
I have had this pacbell.net account since the dawn of emails, when email addresses were limited to 8 characters. Pacbell became sbc-global which became att which became yahoo. Someplace along the way, two security questions were added by some system (the answers to which I do not know), and recently, the password stopped working. The password reset mechanism sends to the account I cannot access, and the alternative mechanism requires answering the two security questions. Yahoo customer service says to contact att customer service which says they cannot help.
So, I am basically trying to regain access to this account by an alternative process, which I hope you can explain to me.
I am willing to pay for a recovery service if it comes to that.