Unhappy with treatment from Vodacom

Good day, from my complaint about Davidson's ability to help me, I have had a call from one of their consultants called Mohali and he promised to email me cancellation details but three later now I have not heard from Vodacom and all I need to do is cancel my contract and have been trying to do this since the 21.12.2020 even after having had to make payments, but I am still waiting, what is the whole idea?