Disney + Billed to Xfinity

I used to have Disney + billed to my Xfinity account, then one day POOF GONE! and when I tried to fix it with Xfinity I was getting an error "We're sorry. It looks like something went wrong". The tech at the time did something and the call dropped. When I called back I was told that it was removed the option to have it billed to my account. I told them to put it back. I was told "you have to cancel the service with Disney + and then come back and add it through your X1". So I did that, keep getting the error "We're sorry. It looks like something went wrong" I dealt with this for a week or more. Someone finally suggested sending "newer" equipment and I quote "That should fix the problem". That was in January, here it is now May, and I STILL cannot add Disney + and have it billed to my Xfinity account. I try every month just before I get billed again with Disney. I would really like this figured out. I am so tired of having to pay separate charges when I can have it billed to one place.