sent to collections but have transcript from 3 different agents saying it's taken care of, but it wasn't and my credit is now effected

I unfortunately switched providers and I regret it for many reasons.  I am struggling financially and the other provider promised to save me money.  They lied and also their service is subpar to yours, they have admitted their towers in my area are falling apart and their tech suggested I just cancel their service, but would not confirm that I would not be penalized, so I am stuck with them for now.

when I swtiched I went into an Xfinity store to make sure that I would not owe you money.  I returned my equipment and was told I'd have an early termination fee, which I paid there.  I then started getting monthly bills that I would call and confirm that I am no longer a customer and wasn't sure why I was still being billed.  Every time I was assured it was taken care of and was in the clear.

I was away on a church retreat and did not have immediate access to my phone, but when I returned I had numerous calls from a Collection Agency saying I had a $180 some outstanding bill with Xfinity.  I was also notified by the credit bureaus that my otherwise excellent credit score that I worked hard to get and maintain took a hit.  I was devistated.  I immediate contacted your company and after a lot of chat was told that all fees including any outstanding early termination, late fees, and a subscription to Peacock that i had cancelled but was still being billed for would all be zerod out and I owed nothing.  I continued to get callls from collecttionsn and my credit still shows the negative hit.  I contacted your live agent chat again who told me they could not share the transcript from prior chats but still owed money... this miscommunication went on and on and ultimately credits were given but leaving $40 some dollars still outstanding.  In order to try to recover my credit i did pay that amount online today, and then chatted with another agent who gave me a phone number and instructions on how to download a transcript of our conversation, which I did  and to my very happy surprise the other chats were alsoo there, including when I was told the bill was completely takencare of and that I collections would automatically be contacted and the negative mark would be removed from the credit bureaus.  I am mostly concerned about my credit though I am also unsure why I had any outstanding balance at all.  I am hoping my transcript canbe reviewed and that you can do something to get my credit restored and the collections agency to stop calling me