Poor technical and customer service

Ordered Fibre and installation by Openserv was done. Thereafter Fibre worked for 2 days and a call was logged. We had to continuously follow up with Vodacom. They just could not resolve the problem and never got back to us. We spoke to about 3/4 people. When we finally wanted to cancel it was almost the same story. We asked them to collect the router (open and used for 2 days) but they said they could or would not. We have now at last received a confirmation of cancellation but with no further attempt to resolve anything or advise on what to do with the router.