I used to work for Comcast for 4 years in the NE. Be advised their internal attitude toward consumers is "they can't touch us".
Comcast management, especially the Roberts, know they have more money and lawyers than any customer. When they say they will work on an issue, it goes into a dead letter file. Their people are taught to confuse and obfuscate. They love it when someone threatens to sue because there is nothing you can do to them.
Change service, don't use them, badmouth them whenever you can. It's all you can do. If you work for them, their HR Department is instructed to look for anything and everything they can place in an employee file which they can use later when firing. There is also no secret in the company that when there are public hearings Comcast hires people to sit in the audience and take the corporate line.
This was recently a story in the Boston Globe when they were caught, and their legal department didn't even flinch. Remember, your complaints to Comcast go absolutely nowhere and they are not interested in doing anything to resolve them. The company mantra is "we can outlast and outspend anyone in any dispute".
Be warned, and spread the word.