Customer service pathetic - Consumer Complaint for Vodacom - Head Office

I cancelled my contract in May 2020, and am still billed for the contracts. When I spoke to an agent on 26/08/2020 she told me that one of my numbers was just upgraded that morning. I advised her that it was not me, and that it must be fraudulent and that she needs to sort it out. Up to date I have not received any feedback from Vodacom. I am only getting billed. I am very disgusted with Vodacom's service, as I have been a customer for 15 years. I need a manager to contact me. I do not want to talk to a customer care agent again