No service from vodacom

Vodacom installed fiber at out house on 1 Feb after sales consultant assured me that fibre would be better than Telkom. This was an absolute lie!!!! The signal next to router was fantastic. Few meters further, signal starts disapering on and off. Got the installation team back, they suggested that the router must be moved. Not an improvement. I logged a call last week mondag, still waiting for response. Logged again on thursday... No connectivity. I phoned every day, couple of times. Eventually the call center agent informed me that a tech will visit the property today at 8:30. I haven't seen a tech, or been contacted by a tech. I phoned vodacom every hour today, spoke to call centre teamleaders, all assuring me they will call back. You can't speak to the tech directly, they can only email an wait for response. Every call Centre agent promised to call me back..... No response!!!!!!!!!! This afternoon I phoned again, fed up, want to cancel. Now they want me to pay for hardware and installation.... For what? Faulty hardware?