Cannot change or receive password to sbcglobal.net account

Good day

Had to reset computer from back up- now cannot login to my sbcglobal.net account - says is is blocked by too many attempts.

Tried to retrieve password, and it leaves me for hours at https://www.att.com/acctmgmt/fpwd/selectmethod without connecting to any page.

Tried Brave, Firefox and Safari browsers all the same.

How can I get into my account?

Regards and Thanks!