Non existent service

Possibly the worst service imaginable, installed fibre line in the week, we were told it will be active in 4 hours, nothing is active, a second technician came out again said the service will be active in 4 hours, still not active, the next day I received a call saying there is an issue with the fibre they will send out a technician, it is a day later still no one, called the call center many times, of which some of the calls were just sent through to a voice prompt to rate the service, only answer im getting is a technician will come have a look, at one point they said they are on site, but there was no one here, it is a mystery to me how they retain customers if they cant even get new ones on board?