Vodacom fibre internet a nightmare

We have vodacom fibre internet and pay for a 100mb service contract. We have been experiencing either very slow speeds or frequent loss of service for a very long time now. The internet download speed never goes faster than 10mbs. We have reported this many times and vodacom refuses to solve the problem. They always do the same thing over and over: Soft resets, hard resets etc. Nobody ever touches the in-home hardware ie the fibre box/modem/router, yet they beat around the same bush without exception. Their technicians refuse to come to the house or to fix the problem. They refuse to accept the fact that they have an issue on their side. They have a problem with either the physical fibre cabling or what quality feed they provide us with to our house in Val de Vie. It is worse than the days of throttled internet. Please stay away from them. Many other ISP's have brilliant service and problem solving