Vodacom doesn't care about their clients they only want money

I have been with vodacom for two years on a home wifi fiber contract, for the first few months it was working fine but after that it was always down I work remotely which means my work depends on the internet connection, I have to buy extra data because the wifi is always down and when you call to log a call they take days to resolve the problem and two days after it's down again. I have tried multiple times to cancel the service whoever they want to pay a cancelation fee of huge amount, why must I pay monthly for internet connection that is ways down. I just want Vodacom to come collect their satellite and wifi,I don't want anything to do with Vodacom, this is a ****, 3 years of payment for no internet coverage.