Crew broke my underground dog fence

I tried to order xfinity internet when I moved to my current home in early April.  After many unkept promises, phone calls, confusing texts and emails, plus hours of my time on the phone to a succession of agents, I was told that it would be sometime in July before this could be done.  At that point, I canceled the order and went with AT&T, who came out the next day.  Then two weeks ago, the JULIE crew appeared twice, several days apart, saying that they had an order from Comcast to mark the utilities.  Last week, the xfinity crew came to bury a cable under the road I live on and then the following day, bring the line to my home (even though I explained to them that I had canceled the order in April.) Since thought I might one day like the option of an alternative to AT&T, I told them to go ahead, warned them about the dog fence, walked out to show precisely where that line was buried, and brought the foreman to the transponder box in the garage.  During one of those days, the underground dog fence was broken.  I only realized it the day my two dogs ran into a neighbor's yard.  Thankfully they didn't head into the busy road I live on.  After another frustrating hour with the customer service robot and being put on hold while the live agent found someone who might be able to help me, I was told a tech would call me today and come out to repair the damage.  It is now 5:30 pm and there has been no call, email or visit.  It costs $175 to have the dog fence people come out to make the repair, but I resent having to do so when Comcast caused the damage to my personal property.  However, I worry about my dogs getting hurt or causing a nuisance even more.  Please let me know how you can help me.