I can't access my directv billing through my ATT login anymore.

I log into ATT - the webpage redirects me to the DirecTV site which says I am billed my another provider and to go to that site to access my billing information. The ATT site doesn't even let me access my profile. It just sends me to the DirecTV site! I haven't been able to see my statements for over 6 months, but yet I get payment reminders from ATT. When I call ATT to straighten this out they transfer me to DirecTV who transfers me back to ATT. When I asked for copies of my statements because I can't access them I was told there will be a charge!!!! I'm so frustrated I am ready to go with another provider!