Getting charged for an inactive Flex box. Use it or get charged?

I am displeased that I was not notified, via my email or on my Xfinity account, of a potential penalty fee for not using my Flex stream box. It wasn't until the charge appeared on my bill that I had to call customer service. Even the representative at customer service had to do some research as to why and what the charge was for. It would have been extremely helpful to have the serial number of the box included on the bill. All it said under the charge was "TV Box + Remote".  I use all my own equipment, Flex and it's included box are free. This is why I was confused. The representative was very helpful and said she would remove the all of the charges. Unfortunately, she forgot to remove part of the particle charge they applied to last month. I will be calling to have that removed also. I explained to her, my sister had an accident with the TV at my mother's house. I brought my TV that the Flex box was attached to over there until they could get a new one.

The representative asked if there was another TV in my house that I could attach the Flex box to and keep it active, otherwise, through monitoring, they would continue to charge me for and inactive box! I stated for the record I think that is absolutely ridiculous. I wanted to repeat it here so others may be aware. I could find no mention of an inactivity fee under terms and conditions for Flex. It is my choice if I want to use Flex or not as it is included with my internet. I should not have to log in to keep it active and avoid a fee.

This was poorly handled by Comcast as they should have contacted me if they thought something was wrong with my Flex box, or some other problems as the customer service rep explained. It was only through her grace and understanding that I am somewhat happy.