ATT Business Email Down, Customer Service Hung Up On Me

My seven sbcglobal.net business accounts and subaccounts have been down since 11AM Central ST. Monday is our busiest day of the week, I called the business center that I pay each month and after 45 minutes on hold and transfers between 3 different people, they hung up on me. I will be transferring service to cable interet and using my own email domains from now on. FATT.