Product: Debt collection

The players : XXXX XXXX XXXX and its owner XXXX XXXX, a rental company, " XXXX '' and the XXXX XXXX XXXX in the XXXX XXXX XXXX. 
Transworld Systems Inc, a debt collector, " TSI '' XXXX  XXXX-XXXX XXXX : XXXX steals an electric scooter, steals mail, steals from my car, steals my credit card information, etc. and subsequently destroys relevant evidence despite specific request to preserve it and multiple police reports. At a minimum, that's spoliation. 

XX/XX/XXXX : I move out of the XXXX building, all paid up, including my last rent payment. 

XXXX XXXX : XXXX  charges me for last utility bill. I ask for the calculations for the utilities, XXXX refuses. XXXX also fabricates some charges against my security deposit, and also fails to pay the interest on the security deposit required in XXXX. XXXX sends me the remainder of my security deposit minus the false charges as well as an account statement showing my balance paid up and me being owed a refund. They include a check which I deposit. 

XXXX XXXX : I dispute the falsified charges with XXXX and the failure to post and pay interest. XXXX admits these were falsified, but tries to charge me a second time for my final rent payment, re-writing their own accounting history to do so. I ask for some sort of verification for this and they provide none. I note the problems with the interest paid on my security deposit and they admit they did not properly refund me. XXXX however, continues to insist that I owe them, despite their shady accounting and documentation history. I continue asking for documentation or verification and they simply stop responding. I ask DC 's city government for help, they suggest suing XXXX  in small claims court ( I have not filed a case yet as of today ). XXXX  at some point blocks its online payment portal precluding any payment in any case. 

XX/XX/XXXX : The Attorney General sues XXXX 's parent company XXXX XXXX for " colluding to illegally raise rents for tens of thousands of XXXX  residents by collectively delegating price-setting authority to XXXX, which used a centralized pricing algorithm to inflate prices, costing renters XXXX  of dollars. '' XXXX XXXX XXXX : Transworld Systems , ostensibly hired by XXXX to collect this " debt '' contacts me via email. I respond via certified mail asking them to verify their license and address when and how the supposed debt became delinquent, the account history in regards to utilities and the thefts, etc. I based my requests on the CFPB example letters. TSI refuse, sending a conclusory statement that restates the amounts, but shows that it deducts some of the falsified charges. They refuse to provide any verification documents. Initially they agree not to report to any credit bureaus in light of the dispute, but drop that reassurance, despite not verifying the debt nor even their own identity. I refer them to the XXXX 's own closing statement showing that I'm all paid up, they insist that is not " material. '' I ask TSI where I would tender payment in cash, supposing I actually owe this debt, and they don't even provide that information. I ask TSI to clarify, given that they are corresponding to me with multiple address, which address should I direct mail to, they refuse to provide any clarification on that either. 

XX/XX/XXXX : I contact you, the CFPB. 

Attached : XXXX  moveout statement, showing I've paid in full through the end of my tenancy. " Carpet Damages '' is the false charge and " Security deposit interest '' was underpaid. Utilities charges are unsubstantiated, but not per se illegitimate. 
My letter asking for more information, and my follow up. 
TSI 's responses.