Can't log into DIRECTV app for iPhone - DirecTV

DIRECTV app will not take my new email address to reset my username and password. I only have DIRECTV not at&t phone service. When I enter my account number from my bill it keeps saying it will send recovery information to my old email address which is not valid. How can I fix the issue so I can use the app?

This question, "Can't log into DIRECTV app for iPhone," is about DirecTV channels, programming, equipment, and sports.