How can I contact the maintenance/construction department at comcast?

We have been trying for over two months to get comcast fiber at our new construction home in a well established neighborhood. Our neighbors (on both sides) are connected, however, after scheduling an installation pro to come hook up the home twice now they've both said that the pole does not have enough ports to connect to, and that maintenance (or engineer or construction) need to upgrade the box on the pole to support an additional home connection. I've driven to our local Comcast store twice to try to resolve the issue with no luck. I've requested a manager reach out to me as soon as possible after every interaction and still have not received a single call (4 manager call requests). I just got off an hour phone call with customer service and after getting transferred to 5 different people, finally spoke to someone who cared enough to talk through the issue with me and although she wasn't the correct person to talk to, she did make a note in my file. At this point, I'm not sure what they’re waiting for but the run around we have been getting is ridiculous. I have never experienced such incompetence. Any help is appreciated.