Product: Debt collection

On XX/XX/2023 i received an email from TSI trying to collect {$52.00} on behalf of XXXX XXXX. 
The letter contained false information. 
I had an account with XXXX, which was set up with auto pay on XXXX day of each calendar month. 
On XX/XX/2023 my credit card was automatically charged {$52.00} ( monthly XXXX payment ). 
I called XXXX on XX/XX/2023, and request cancellation of the account due to move to a different state. 
On XX/XX/2023 I received a final statement from XXXX, showing XXXX owes me {$28.00} credit ( please see attached confirmation ). 
However, the statement showed the service was cancelled on XX/XX/2023, not XX/XX/2023. 
I did call XXXX customer service multiple times to understand why my service was not cancelled on XX/XX/2023 as requested, but did not get any straightforward answer. 
Neither did I receive a credit for {$28.00}. 
After multiple attempts to get a refund of {$28.00}, I disputed XX/XX/2023 charge of {$52.00} with my credit card. 
Credit card requested XXXX to provide supplement information to support the charge of {$52.00}, however, XXXX failed to provide it within required timeframe. 
Credit card recalled {$52.00} payment from XXXX and credited my account. 
It seems XXXX placed an account for collection with XXXX afterwards. However, XXXX supported the collection case with the statement invoiced on XX/XX/2023, reflecting faulty and incorrect information. The statement was not mailed to me, the customer, and contradicts the statement I received on XX/XX/2023, with invoice date of XX/XX/2023. 
On XX/XX/2023, I received a letter from XXXX saying they issued a check for {$28.00} on XX/XX/2023 but it was not cashed ( please see attached ). 
I called XXXX customer support again and received yet another misleading and faulty information. 
In the beginning of the conversation, XXXX agent said they were not aware of my address change and sent the check to old address. The information was false, since I advised XXXX customer service of the address change at the time I called to cancel the service. Moreover, XXXX agent stopped by my new address to reopen XXXX account, which I rejected. Not to mentioned I did request mail transfer from my old address to my new address with USPS. Thats how I received a final statement from XXXX on XX/XX/2023. Finally, the letter I received on XX/XX/2023 listed my new address. During phone conversation on XX/XX/2023 I asked the agent to issue another check to my new address on file. The agent said he will not do it because I disputed {$52.00} amount with my credit card. The agent ignored my statement that it contradicts the letter I received from XXXX on XX/XX/2023, saying it was automatically generated letter. Then I told agent, since XXXX does not want to refund me {$28.00} credit, it is unlawful to try to collect {$52.00} via XXXX, because the balance should be net of the credit that has never been issue and received, or {$52.00} XXXX, which is unpaid balance of {$24.00}. The agent said he is not willing to make an adjustment. 
As of today, XXXX provided fraudulent and controversial statements to collection agency vs myself/customer, did not share all the details of credit-debit reconciliation with collection agency, tried to collect higher balance vs actual amount owed, refused to refund the credit owed to myself/customer, and charge me for extra 7 day of service ( cancellation requested on XX/XX/2023 while account was not closed until XX/XX/2023 ) in retaliation of me not willing to reopen XXXX service at new location. 

Please investigate fraudulent activity of XXXX XXXX against their customer and help me resolve an issue. 

Thank you XXXX XXXX