Vodacom Fibre

I had a 12 month contract with Vodacom fibre for approx 4 years. The contract has never been renewed after it expired after 12 months. For the past 6 months l started getting problems. The signal seems to dip then l am "Connected without Internet" l have to restart, reset everything every time tis happens. When l call support l am told they are re setting it, then it is fine fir a day or to, then the same problem emerge all over. I decided to change to another company as l got fed up calling Vodacom fibre every time. When l cancelled the contract l am told l have to give 30 days notice. I can understand this if l had a contract but l am on a month to month basis. Neither was l informed about any changes by Vodacom during this period. I have already moved to another service provider and l will NOT pay for another month as this contract was cancelled due to bad service from vodacom. These big companies think they can bully the customer by just billing us but nothing is said about their bad service.