Vodacom REFUSES clients rights to cancel contracts

It has been over 2 months now since I requested a cancelation of my policy. I signed the quote and paid the cancelation. I have received 3 reference numbers and have been told it was canceled. At first it was meant to take effect on the 31st of May, then I was told it would be 14th June. Nothing has happened despite numerous calls and emails to Vodacom. This morning I was allocated my usual contract data. Is there anyone at Vodacom who can assist? This has gone on for too long. The agent who promised to help me, Fiona Ndlovu from cancelations, has not got back to me for weeks. Can someone at Vodacom please sort this out