Xumo TV Xfinity X1 and Flex Install: Press the Home or Xfinity button on your Xfinity voice remote, choose Apps, and then HBO Max.
To change your plan, you need to be located in the country where you started your subscription. If you're traveling, wait until you return home to change your subscription plan. If you still can't change your plan, find out who your subscription is billed through and contact them for help. Who's billing me?
Your home country is the country where you signed up for HBO Max. Shows and movies: What's available to stream will change based on your physical location. As a result, you may not be able to stream some titles on your Continue Watching and My List when you travel to another country. Ratings: Content ratings are based on your physical location.