How do I get a copy of my phone conversation with T-Mobile?

I have been on 8-9 calls, often well over an hour each, and every time the representative is apologetic, initially.  Once we go through the entire issue repetir, the 'support' becomes anything but supportive.  Somehow, I am to blame for never requesting a cancellation of my service, which is ridiculous to the point of being offensive.

I returned the internet unit in a store.  While in the store, I was told instead of $50/mo internet I had actually received $25/mo internet and $25/mo phone.  I didn't even know I had a phone line and thought that information was odd at the time, but now have realized they intentionally execute this setup to create these extra revenue dollars, unethically.  I asked them to cancel both, but they claimed they could only cancel the internet and that I had to call to cancel the phone.  

The same day I called to cancel the phone, and the representative stated I needed to go to the store to cancel the service.  I argued against that suggestion (I'm over an hour away from the store), and I informed support that I was just in the store and given directions to call support.  Despite pulling up all my information, I was told some pin created the previous year is the ONLY method to pull up account information; I offered SSN, DOB, CC, address, etc., but those unique identifiers were not enough information to solicitud cancelling my account.  This went back and forth for over an hour and continued on multiple calls, yet somehow I never requested cancellation.  Laughable.

On 3 different calls to support, I've told that my issue has been cleared, including investigation resolution numbers.  Great news, there is no longer a problem, except the information is categorically incorrect.  Now my 'debt' for a service I cancelled is with collections.  I was again told they cleared the debt.  Upon follow up (not a Tmobile update as would be expected), I was told my records indicated no dispute with the charges.  Can't even begin to understand how that's even possible.

I have been hung up on twice by the support team after being on hold for over 30 minutes.  This company is the absolute worst business I have ever experienced. 

My only compliment is the internet service.  It was a perfect solution to my problem with an easy setup.  But the lying is ubiquitous internally and applies to major account details and customer service.

I am discussing options with my company's legal team as well as my successful neighbor; I'm lucky to have multiple lawyers as friends.  The feedback is generally it's not worth it to file suit as it costs more to file than the actual debt, but I've decided I'm willing to go bankrupt in pursuit of justice.  The unethical and I believe illegal actions by TMobile have given me a drive and purpose I normally reserve for activities I love.  

Apologies for the diatribe.  I am still nonplussed an entire company can be so unethical.  I would love to speak to someone with the ability to do something as simple as review my previous calls.