Damage to sprinkler system pipe

I was having problems with my Xfinity internet service earlier this year and so after sending out CS reps to my address Xfinity determined they need to lay and bury new wire. This was in the winter when the wire was reburied, so I was not using sprinklers but apparently, during the cable burial process the sprinkler system piping was broken and now it needs repairs that will cost me money out of pocket for lapses in Xfinity reburying process. I need to file a claim to report that damage but neither the phone or chat agents are connecting me to a live person. How can I make a report to ensure I am reimbursed for the damage?