Very poor service

I have contacted Vodacom on 16 July 2024 to cancel a contract. The gentleman confirmed that he did the cancelation and the last debit order will be in August. In September I noted that the debit order was deducted from my account again. I phoned in again and was advised that the cancelation was not processed. I spoke to the Manager Shane Chetty who was going to listen to the call recording and phone me back by COB. I had no call from him. This is very disappointing that the request was not processed and due to the poor service the debit order was still deducted. I have requested for this to be reversed however Shane was going to listen the call.