Serviceability Request for Line Connection from Street to House

Hi,

I am in the process of renovating a 1968 home that has never had internet or cable service. I have a new Xfinity account and have an "install date" of 2/28, however, I'm fairly certain that the technician isn't going to be able to locate lines, dig a trench, run wires into the house, and activate equipment on a 2 hour install appointment.  I need to know how to get this initiated ASAP,  because the internet needs to be up and running when we move in in March. I've tried various ways to get this started, and customer service doesn't seem to understand what I'm talking about. They just tell me to wait until the tech comes out and they will figure it out - but I've read that this process can be time consuming, and we need to know where the tech wants the drop to be situated in/on the house. We can get the lines located and dig the trenching so it's ready for the tech, but need to know what Xfinity's process is. I would appreciate a response at your earliest convenience. Thanks so much!