******* black listing and refusal to provide call recording

I had a loan with Wonga and paid it up after they gave me a settlement account. I was handed over to Nimble Group even after I paid up the account. I have since asked for the call recording to verify the amount I was given. Its been over 2 months since Nimble Group has asked Wonga for the call recordings. Wonga has listed me on ITC and also Nimble for the same amount which doesn't make sense. Why list me twice for same account. I have submitted settlement letters, proof of payment and paid up letter and yet there seems to be no recon of this account. Wonga wants me to pay twice for 1 account, day light *******. The call recording has taken over 6 months to be provided for me. 2 other debt collectors have dealt with this account and still NO CALL RECORDING from Wonga. Debt collectors have been requesting this and even copied me in their communication and Wonga has ignored this request for near 2 years. Wonga is a bully who realises they were WRONG and now want to be unduly enriched by clients who they keep intimidating through lawyers. Please note, I know I had 2 accounts with Wonga and at some point there was a mix up of which account was paid up as I had asked Wonga for a settlement amount and they sent me. This was paid by Old Mutual as I was consolidating my loans 3 years ago. I found out 2 years later when a debt collector called me about a Wonga account, to my suprise. It has been a back and forth with at least 3 debt collectors and proof of payments and paid up letter being sent 100 times and today in 2021 im still fighting Wonga for a damn call recording to prove them wrong.