Incompetence of call centre and related staff

I have been trying to cancel two of my contracts on my Vodacom account but it seems to be an impossible task for Vodacom to perform. 1st call was logged on the 25th November, 2nd call was logged on 22nd December, 3rd call was logged on 13 January. I don't get feedback, I don't get any kind of update to tell me what is going on. I managed to speak to the call centre line manager Mbuso Ndokweni on the 13th, and was made promises that it will be investigated and I will be given feedback, and still today nothing. I phoned again today to follow up, he was working from home and would have phoned me back, I am still waiting. My overall experience with Vodacom the past year has been nothing but absolute ridiculousness - as I had other issues with them that took 9 months to resolve, just to now again trying to cancel 2 contracts. The absolute incompetence of their call centre staff is on a scale from 1-10 sitting at 100. I am fed-up.