Max

The current subscription provided by AT&T is the add-free tier which does not include 4K or dolby atmos. I would like to upgrade to the ultimate tier which does include 4K and dolby atmos. Is this possible? I cannot find a way to do this through account management.

When I try to log in to the new Max on my tablet, it says my Provider account is already in use. It says it’s connected to another Max account.

Got rid of my cable TV provider and I tried to login to HBO Max. My wireless "Plan Details" says HBO Max Included. Instructions say login to ATT and click on "Activate HBO Max Tile" which is nowhere to be found. When I login using ATT as my provider, it says "Your subscription cannot be verified".