Installation Fee

I recently moved in to a new home and opted to do a self installation. I tried very hard, but eventually was able to prove that the main line coaxial line into my property was faulty (my husband is a tech). 

We contacted Xfinity customer care, and they said a Xfinity technician is needed, and that I wouldn’t be charged if the issue was not a fault within my home.

The on site technician was able to confirm that the cable leading to my property was faulty and that they would need a few days to replace that cable. We experienced a 2 day outage due to this faulty cable.

The technician said he would waive the $100 fee because the issue was not due to fault in my home, but I was still charged $100.

I would have expected a rebate for the 2 day outage caused by a faulty orange cable from Xfinity into my property, but instead I am paying Xfinity $100 dollars for something they said would be free.

Can someone help me with this? This is not fair. How can dare subscribe to other services at Comcast, such as phone, tv, cell phone, when your service that I receive with just internet comes with such low integrity?