Billed after cancellation

I can’t understand for the life of me why I’m still being billed for services I cancelled in November.

On November 11, 2022, I called to cancel my Xfinity service because I had switched providers. I was told I would be charged an early termination fee of $70, which I was fine with because I no longer needed the service. I thought everything was good to go. In December, I received a bill, so I called Xfinity AGAIN to see why I was still being billed because I had cancelled my service. The person I spoke with said the account was still active and that he was canceling it for sure then. He said my bill would be credited. He was able to go back and look at the usage to see that I had not used the services since around the time I called to cancel it the FIRST time in November. So once again, I thought it was handled.

A few days later I returned the equipment to the local store and was told my service was still active!!!! I was confused because, I again thought everything was resolved. Well a few days ago, I received notice that the account was sent to collections! Insane! I called Xfinity again on March 23 and was told the bill would be credited and that I would receive an email. I still have not received anything.

You can pull your phone records to verify everything I’ve said. On 3 separate occasions I was told my services were terminated only to be stuck with a bill. This are very deceptive practices and very poor customer service. I’m just wondering how can I finally resolve this.