Moving to new construction

I am moving into a new house on the other side of my current property. (Which has been labeled with the same address + B by the city) My old house will be demolished. The new house has no comcast line dropped. We are in phase 3 of construction. I opened a ticket and haven't heard a word from xfinity about getting comcast run to the new house. I'm running out of time and won't be able to continue comcast service if they won't drop a line. Who can I contact to get comcast out here to run service? So frustrating because I really want to keep all of my services!!