Vodacom is becoming a virus that you can not shed

I have been a subscriber with Vodacom nearly when they started in the 1990's. I supp**** my whole family with contracts for years and is now close to retiring and my family now is now starting with their own contracts. I have been trying to cancel my redundant contracts and it just doesn't happen. They promise that it has been cancelled but it does not happen. Vodacom is becoming a virus you can not shake. At this point I will not use or recommend Vodacom as you can not get rid of them. It is sad that a reputable company become so greedy and *********.