Extreamly unsatisfied with the Service from Telkom

hi, I am a long time customer of Telkom and have been trying to cancel my Mobile subscription since the 26th April which I have done online. I went into Mall of Africa branch, they said they cannot assist me, I called 10213,081180,10210,10212 and each time camping on the line for 1 hour and nobody answered the call. I have logged 4 disputes and nobody attended to it yet. I have also tried Telkom chat and they tell me straight that its not their department and they cannot assist. I have been on Facebook chat and no one has answered me yet. Up until now I have not yet received any confirmation of termination or any other form of confirmation. I am hoping someone here can help me. If I don't get joy here, I will be going to the credit bureau and the NCR.