Bad customer service

Lifeline Debt Solutions management does not return or contact me back. I phoned them now 3 times already to speak to a manager about my account. We have been paying for 5 years now and has been loyal payers and never skipped a payment. Now that we have an issue, nobody seems to care but they are very quickly to take your money every month. The problem is the following: My wifes vehicle has been paid up last month but Lifeline Debt Solution over paid the account by R270+ Now we try to get that money back but with no luck from our side. We also need to get the vehicle papers and put the vehicle on my wifes name. This also cannot happen as Wesbank needs proof of the last 3 x payments done (why I don't know) as Wesbank can clearly see that the vehicle has been paid up. The other problem that we have is that my wife does not have a bank account in her name to refund the overpayment in Wesbank account number as Lifeline Debt Solution instructed us to get a joined account which is in my name. This is a quick thing to fix if Lifeline Debt Solution can just do their work which we pay for. Hope to get a solution as quickly as possible.