Poor service

Still waiting for an installation. Each person you speak to at the technical team gives you a different answer on max cable lengths etc. They send an email to tell me there is a tree on my property that needs to be cut down so that they can get signal. I have no trees in my yard. They say they will call you back and then when you try and get hold of them they have left for the day. They arrive more than an hour late for an appointment with no courtesy to infor you they are running late. Even the technicians on site give you different answers. I wonder if these guys know what they doing