I tried that once, the first time services went down. I told someone there my story, and then a month went by without hearing anything back. By then, my services were back on and I thought I was on the way to recovery. Then I got a voicemail out of the blue from someone at the PUC who told me that they reached Comcast, and all Comcast could tell them was that I've been a "delinquent" for months and that my story is all wrong.
Perhaps I'll give another call, now that I've got my full documentation and everything. I think it'll still be a he-said, she-said case, because it's my word against theirs about the lack of services at the beginning.