Very disappointed

I recently wanted to end an old contract that I had with vodacom but was convinced to try a new package but with it was said that I have a 14 day cooling off period if I changed my mind but when I contacted vodacom to cancel that plan within the 14 day cooling off period it was said that the contract was finalized already and that the person that helped me was working from home which made it difficult to deal with the problem so it had to be escalated and that they would get back to me within a few days but 2 weeks later still nothing and am being billed accordingly. So now I don't know what to do anymore and this is not the first issue I had like this with vidacom.