Technician Service Billing Issue

I am contacting you to dispute the $100 technician service fee on my account ending in [Edited: "Personal Information"]. My existing, fully functional internet suddenly went completely offline. A technician came out on 9/14. The technician did not need to repair any equipment or wiring inside my apartment unit. Instead, they traced the failure to a broken connection out in the apartment building's shared utility room and fixed the line there. Because this was a sudden failure of Comcast infrastructure outside of my personal living space, it should be categorized as an outside network repair. Please pull up the technician's notes for this ticket and credit the $100 back to my account.