Incorrect Outstanding Balance Due to Poor Service

The loan account you sold to Nimble Credit Solutions now shows that I owe R206.84. In April, I had a balance of around R590 (Im not sure of the exact amount), and I paid R600. I contacted you through emails and calls, but received no reply, and the amount accumulated for months. Now you’re only allocating the payment I made, not the accumulated amount. This is due to your poor customer service and a 100% automated phone system that doesn’t offer an option to contact an agent. Now I have an outstanding balance on the Nimble Credit Solutions website. This balance is incorrect and should not be my responsibility because of your bad service.