Service Fee

I recently underwent some home renovations and decided to cancel my service in the interim.  I had the idea that I would reactivate my service once the renovations were complete.

Since the renovations did not take as long as expected, I had reactivated my service within 2 weeks of cancelling it.  I was also under the impression that I was able to use the same equipment that I had been using prior to my initial cancelation.

However, when I had attempted to reactivate my account, the internet wasn't working.  After a lengthy phone call to a rep, I was convinced to have a tech come out to my house to assess the situation.

What I had figured out on my own the following day after reactivating my account, was that my gateway router/modem was out of date and that I needed to swap it out for a newer one.

Mind you, I had done all this BEFORE the tech even came out to my house.  I had called Comcast back up soon after getting my new router set up and cancelled my service appointment as it was obviously no longer needed.

The $100 service charge on my account though did NOT go away as I thought it would.

Why?  Why am I still being charged for a tech even though I have cancelled my appointment?