Vodacom, misery

Vodacom is really an ************* network. My contract expired in March 2019. Their policy dictates that you call a month in advance to cancel the contract which I did in February, I told to call in March which I did and was assured all is okay. It is August now after numerous phone calls to cancel the contract it is still ongoing. I have asked call centre staff to listen to recordings stating saying that I want the contract cancelled and was assured I would be called by team leaders but alas, the account is still accruing charges for services I no longer want. I do not know how it is even legal for these cell networks to deduct from your bank account after the contract period has expired. Please note that their call centre also drops calls, and transfers you to no end... I could go on and on.... nxe.