HBOMax not compatible with older HBO bundle plans?

I have had HBO bundle since 2016. My monthly bill shows included HBOMax in the plan. I had access to HBOMax streaming until this morning. When I try to login to the HBOmax website or app (phone and tv) it says that my Xfinity subscription has expired. HBOMax will then ask me to link a subscription.  When I login with my Xfiinity account it brings me to a Xfinity.com page to add HBOMax to my plan. I even tried to add it to my account but it errors out and tells me I must call a 1-877 number for further assistance. 

 

I called tech support about the issue. The said it is due to the fact they no longer offer premium channels as a bundle and I need to redo my plan in order to access my content. All the plans are more expensive for less. 

 

Is anyone else having this problem with the service?  I wonder what the solution will be or will I no longer have access to the content I had last week.  Thank you for your time.