I've asked a Comcast employee to help you. You should expect a reply in this thread.
FYI: They owe you a $20 credit for every tech visit after the first for the same problem.You can also get a credit for your service from the time you first reported the issue until it is resolved.
Hi, HorribleServic2 - My apologies for your experience, please send me a private message and include your full name, the account holder's name and address as it listed on the billing statement, a phone or an account number. I can address your technical issue. Click on my name ComcastElla, then click Private Message Me.