Internet

I recently just moved to a new home and had to get a new plan(1st issue) but whatever, but when I had a tech come out to run wire and set up my internet for me, they messed up(main issue). For context, the internet is set up in one of those boxes you see outside on yards, where it holds cables for multiple homes. I scheduled for a tech to come install internet, he said “we cant, we have to dig underground and into the driveway to get it set up properly” so i asked what if we just have cable around the house for now, and they scheduled a new time to do that. Which leads to the 2nd guy messing up. He comes by, we talk and come to an agreement that he would run a wire from the box to my modem in the house. He does, however he took out a neighbors wires to install mine and neither me nor my neighbor knew about this. This morning my neighbor went out and reconnected their cord, so now i have no internet again. How is Xfinity/comcast able to let things like this happen? Im getting sick and tired of all the [Edited: "Language"] that they say.