Hello, I have a phone, internet, TV package from Comcast cable. All three went down one night and I called by cell phone and they said they would credit me a day, should have been 4-5 dollars. I just went to pay my bill and it is was twenty dollars less. The service was down less than twenty minutes at about 1 am and a few days later it went down for about two minutes in the afternoon. I only reported the single interruption. So I am thinking there may be service interuptions without my knowledge. I am looking for a device or computer software that could monitor a service interuption and record the date, time and length. I then call in the info to Comcast and get credits for my bill. Any suggestions on how to do this?