Installation Fee Dispute

Hello, 

Last month I was having issues connecting to the internet at my new apartment. I tried to connect my personal modem/router and cable box to every coaxial cable in my apartment, but none worked. A technician came by to fix it, but had to fix the wiring on the outside of my building that connected to my coaxial outlets and only 1 ended up working, which I now use. The technician provided a new wireless tv box, but only because I had one coaxial outlet available which my wifi was plugged into. 

I recently received the bill and it showed a $100 installation fee on my bill, am I able to dispute that since my equipment wasn’t the issue or is it my issue since my outlets weren’t working?