Its all on purpose

I logged a dispute with TRANSUNION credit bureau on the 3rd of July 2025 concerning an account on my report that had long prescribed and they responded 5 days later not 5 working days but 5 days later saying they are not going to remove this information as they have found creditable information from the creditor that i acknowledged this debt but they did not attach any of this proof along with their claim. I find this highly prejudice that you have retained this information without proof. I ask you send me thee original creditor verification showing proof of payment or an acknowledgement by telephone recording or remove this account immediately. Thee account in question is DMC ACCOUNT NUMBER:***4