Poor Customer Service for Fibre Clients

I am having a very horrible experience with Vodacom Fibre. The connectivity goes down every other day and logging service requests does not help. My connectivity was down starting Friday evening, I logged a service request and then was told it is restored. Now the signal shows that is is on but it is not really working, I am struggling to connect to the internet and to my apps. I have restarted the router several times and nothing changes. I call everyday to follow on my Service Request and the consultants always tell me it is assigned to a technician and they will call me to update me on the progress, but then no one calls. What is point of having fibre connection that I pay but still have to buy mobile data in order to be able to connect to the internet??