Poor customer service - credit card closure

I cancelled my credit card on 23 October 2018, however the monthly debit order for said card was still deducted from my back account on 31 October. The monthly service fees and finance charges have also been deducted from this amount on the credit card. The person who assisted with the closure ensured me that no payment would go through, and even said that they had changed the debit amount to R0. On 2 November 2018 a consultant from premier banking tried to call once, however I was in a meeting and could not answer my phone. I received an email, to which I responded and asked the person to call again. On 9 November I followed up with the call centre and was told that only the premier banker can assist me. I was told that a notification was sent to the consultant, however I heard nothing. On 16 November I called the call centre again, and was once more referred to the same premier banker, and told that they would call me before close of business. I did not receive any calls. I urgently require assistance to get my money back. And ensure that the card is closed, and the fees for November are reversed. This is unacceptable service.