House fire nightmare

In June 2023 my house burned to the ground. I called to cancel my service and was told that I couldn’t because I had Xfinity mobile. She said I could drop to the lowest internet speed which would cost around $30-$40.  Which was better than my current bill of $180. I told her to do that and to also send me a copy of her policy book where it states I have to pay for a service that I can’t actually use or they will shut my phone off. In normal Xfinity fashion, she met my expectations by hanging up on me. Forward to current, my “contract” with the phones was up so moved my phone service and called to cancel the service on the house that was burned to the ground. Come to find out the lady that hung up on me, got the last laugh. She changed nothing with my service, so I have been paying $180/mo x 16 months for a service where I did not use 1mb. That is not only wrong, It should be criminal. The gentleman on the phone told me he would look into the charges, cancel my service, and that when house fires occur, they wave the equipment turn in since obviously it was melted. I waited on my last partial bill, but again Xfinity spectacularly failed. He put my cancelation as pending or something so they didn’t cancel my service.  Like a fool I called Xfinity again. The guy on the phone apologized told me he would cancel my service and credit me back to the date that I originally canceled and get back with me on the $2880 the original Xfinity representative stole from me. A week later here I sit with no canceled service and another month billed to my account. I don’t know what to do? Should I call Xfinity? Should I call the police? Should I just give up and pay the $180 a month for the rest of my life? Any suggestions?