Quick to put you on Debt review, a mission impossible to get removed.

I paid up all my debt, sent all the paid-up letters to Summit Financial Partners in May 2024. In August 2024 they sent me a clearance letter and informed me that it takes 60 working days for the debit review remark to be updated and removed from all credit bureaus. After waiting 60 working days, I called Summit Financial to get an update only to be told that the clearance letter that they gave me is invalid because it was not signed by the Commissioner of Oath. I have written to the Ombud, please advise on other ways to get this company reported.