MAX Sign-In

I subscribe to HBO through DirecTV. When MAX replaced HBOMAX I downloaded the new app. My info from the HBOMAX app was still active. I was not required to sign in and was able to use the new app with no problems. On June 7 I was asked to sign in. For the past two weeks I have been unable to sign in and access the MAX app. I have tried signing in on various devices that include a web browser, an Apple TV, an iPhone and an iPad. Each time I try to sign in with my provider and use my DirecTV login info I get an error message that says "Something went wrong. Try again." I have gone through all the troubleshooting guides posted on both the DirecTV and MAX websites.  Additionally, I have placed several calls totaling close to 7 hours to both companies customer service departments to resolve this issue. First, MAX told me the problem was on DirecTV's end; then DirecTV told me the problem was on MAX's end. My last call to MAX was almost a week ago. I spent over 1 hour and talked to 2 customer service reps. Finally the 2nd rep told me she was creating a case file and sending it to their advanced tech department. She also said they would contact me via email. It's been 6 days and I haven't heard from them.

One thing I have noticed is that when MAX sends me to a login page, there is an AT&T logo on it.  Every other service I subscribe to through DirecTV and stream on other devices (ESPN, Fox Sports, Sundance TV, etc.) sends me to a login page that has a DirecTV

logo. At any rate, this has evolved past the point of infuriating. Is there anyone at your company who knows how to solve this?