MTN Appalling Service

I am a MTN client, since the beginning of cell phones, the service has never been good, but lately it is non existing and borderline appalling. I have a data contract that expired 16 September 2020, I visited my nearest branch to cancel said contract on 29 August, the consultant logged a request to cancel the contract on expiry 16 September 2020. On 28 Oct. I called the retention line as an amount (R10.00 above the original contracted amount) was still being deducted via debit order, the consultant assured me that she had asked for the contract to be cancelled and all deductions to be credited to me. On 23 Nov. I went back to MTN Cape Gate, as the matter was still not resolved the consultant called the retention line and asked to talk to a supervisor. After holding for 20 min we ended the call as I was advised they would not pick up because it is too close to closing time. On 26 Nov. I called again, when asked to talk to a supervisor I held on for 20 min, after which I had to drop the call, as I had another engagement. If you have an MTN issue, good luck as you will not get it resolved they block your number even if you did pay. However they do not stop debit orders even after contracts expired and in spite of the data not being used. I e-mailed ICASA on 01 Dec. with no feedback to date so this might be another case of poor service delivery.