Vodacom uses debit orders to *****

I installed fibre (20Mbps download speed) with Vodacom on 1 Feb 19. Since then I experienced speeds of 7Mbps for 2 weeks and then NO CONNECTION at all for 5 days. This prompted me to cancel my subscription (in writing) on the 27 Feb 19. Since then I enquired several times on the progress of the cancellation, but I could never get to the agent dealing with it. Just being told that it is being handled, no details. Now Vodacom continues to ***** from me, as they put the debit order on the same account as my cell phone, preventing me from putting a stop order in the bank. How do you get rid of a company that abuses its size and powerand continues to take money ********ly from you? They did not provide the service they were contracted for (breach of contract), but contunue to debit your account against your will. Abuse and Theft!!