You apparently did not provide any documentation suppporting your assertion that the debt is not recognized as yours, and the debt collector investigated and verified that they found sufficient basis to find that you are responsible for the asserted debt.
There is no requirement under the FCRA that a furnisher provide supporting documentation when they verify the accuracy of their reporting.
The requirment is that they conduct a reasonable investigation and make a finding either that the accuracy is verified, or that they correct the reporting so as to overcome any agreed inaccuracy.
Proofs supporting a finding are reserved for legal proceedings before a court.
The FCRA does provide a consumer, after receiving the results of a dispute, to then request from the CRA a "description of the procedure used to determine the accuracy and completeness of the information" that was disputed. FCRA 611(a)(7).
The courts have interpreted that method of verification process to apply to the procedure only, such as the name of the party to whom the dispute was referred, and not to any requirment of how they investigated the dispute and what documents were relied upon.
To obtain that information generally requires bringing civil action and compelling disclosure via the pre-trial discovery process of the court.
You can file another dispute only if you provide additional information not previously submitted.
A second dispute that is substantially the same as a prior dispute can be dismissed without any investigation as being "frivolous or irrelevant."
Do you have any documentation to support your assertion that the debt is not yours other than your stated lack of recognition?
Are you willing to bring civil action and get the full facts, and resulting finding of a court?
