Poor response and feedback from Standard Bank Personal Lending Recoveries

I am very disappointed in the service and feedback of the Personal Lending Recoveries section of Standard Bank. My cheque account was handed over in June To their Lawyers. I made an arrangement with Debtbusters to handle all my Debt in 2020 and my cheque account was supposed to be included. I am sad to say they did not and I was not advised to pay of the small amount due then in 2020. Now interest have accumulated and I owe thousands!! My main grievance is that I contacted Standard Bank several times to explain that I am not responsible for the accumulated interest as no transaction took place after my Debt consolidation. I was advised to send an email to their Personal Lending, Recoveries which I did. NO response from Standard Bank was received and the next thing I know, I am handed over. I have proof of my email and if they checked my Bank statement, they should have seen that there have been no transactions. Standard Bank have to date not rep****!