The truth is that Comcast sucks.
I have, as you know, had my own issues and I had said, "From what I can tell the answer is that no matter what your problem is NO ONE CAN HELP YOU. It is like their corporate model is to be actively unhelpful." And apparently they suck no matter who you are. Check out Dave Barry's report about trying to get his TiVo hooked up to his cable. He says, "Bomcast needs to stop apologizing for the inconvenience, and start being less inconvenient."