Connecting to Bally Sports

Hi- I am trying to use the Bally app to watch my local team.  The app shows that Xfinity is connected but when I attempt to watch content, it again asks me to connect the provider but then hangs and does not advance or allow access.  I have spoken with their support and they give me generic instruction and when that fails, they just say sorry and contact your provider  I do not subscribe to their service as I should be able to connect as I have in the past.  What do I need to do/. Than you.