VODACOM is unprofessional

I had a home internet and a VODACOM agent of door to door told me I could upgrade to fiber by continuing the existing contract. I signed up and I did not want to keep both services. She told me the home internet will be canceled and I will be using the fibre service instead. I tried contacting customer service to see if home internet was canceled so that I don’t get billed for both services. It was never cancelled. I followed up for 3 months trying to request to be billed for a single service. They all avoided the situation by passing a buck. Nobody wanted to resolve the problem. I spoke to the retention manager she told me she was going to resolve and speak to the bosses about the issue, told me she will call back in 3 days and I should call. I waited six days no call. When I call back she never rattled to come to the phone. She told the lady in billing that I should just pay the bill with BOTH SERVICES , I refused to do that I did not ask for 2 services she refused to come to the phone. Now they handed my account over to MBD attorneys messing my credit report!! They are ***ards