Furious with service

I made an order and still waiting installation, the first time I called after 2days of order, I was advised their agent did not put my address in, I gave them my address, waited 3days, called again and again same problem. I then gave the lady my address , a day later I called and they said there was already an isp connected to my house, which I then told them it is to a cottage and not my house. Now another 3days later they keep telling me they will escalate it yet their service provider was here next door to me yesterday installing Fibre. I have used up to over an hour of minutes constantly calling them. This is unprofessional, yet come monthend they know how to quickly deactivate immediately if I make no payment.