False advertising

I received a call from a Vodacom telemarketer selling me. A new sim only package for my Vodacom package which was nearing renewal. The package offered had voice minutes as well as data. The package offered sounded like what I was after, so I confirmed with the lady that I would be getting both voice and data more than once. She assured me of this and we confirmed the deal. Then once the new package went into effect, I found that I only had data. I called Vodacom to cancel and was told that the matter would be escalated. Then last week I called again and was again told that the matter would be escalated. Until now I have heard nothing but have still had the debit order go off.