Cannot get my service disconnected, will not connect me to someone to complain about absolutely terrible service

I turned in my business modem/router to an Xfinity Service Center on 2/10/23. They gave me a small register receipt at that time. They told me I could not cancel Business service at an Xfinity center, I needed to call 1-800-391-3000 to do that. I did that on 2/10/23 at 4:33pm (per cell phone records.)  I spoke to someone for 10 minutes and he assured me we were all set. I did not get a case number, did not think I needed it.  Time passed, I thought we were all set. I misplaced my equipment receipt.

I got an email about my bill being past due on March 26th. On April 10 I called the service center and explained the saga thus far. I was told that they had not received a mythical disconnect form from me, thus I was still being billed. I said, "what disconnect form? I was never told about this form on my 2/10/23 call." Your rep told me there was no record in her database of any call on 2/10/23. Strongly hinting that the fault is somehow mine. I can prove, via cell phone records, I did indeed talk to your service center on 2/10/23.

She told me she would send me this form via email, but that it could take up to a week. I questioned why it would take a week to send an email, but she said it just does.

Time went by, I never received an email. I got another past due notice. I called in again on 2/26/23, went through the whole history and again was told that of course my service is not disconnected, I have not filled out a disconnect form. Again I protested that I HAVE NEVER BEEN SUPPLIED A DISCONNECT FORM. I was further told that since I could not prove I turned in my equipment, the service would continue to be active until I filled out the disconnect form.  I asked why would I keep a 10+ year old modem that only worked on your network? As far as proof, could you not look at the network logs and see that the MAC address of that modem has not received on packet of data since 2/10/23. She told me it doesn't work that way, the FORM was how they tracked end dates.

To this day I have never seen this form, but I do get daily calls asking me to pay my overdue bill.

I asked to speak to a supervisor, or someone with authority to review my case. I was told it was already reviewed and any alternate resolution other than what I was being told has been denied my "them." I asked to speak to "them" and was told that was not possible, their decision was final.

My wife and I have been a Comcast residential subscriber for over 30 years, we had business service since at least 2012. Always paid my bill, never complained or threatened to leave even though the cost 3x in that time and you did not improve the service one bit. I am beyond angry that I am being treated like either a liar or an idiot.

This episode continues to take time away from me running my business and has me questioning why I would want to continue to associate with Comcast. 

Honestly I am to the point of I don't want to talk to business support any longer. If I can't get resolution to this through this forum, since there is no complaint line for the terrible service offered by your support number then my next step is the BBB and the State Attorney General's office. Because I am beginning to feel that this is just a ruse to try and extort more money out of me.

Looking forward to someone contacting me.