I've got a signed receipt, a cancellation number, a signed statement that I am not responsible for the remaining balance, and a signed statement that all of Comcast's equipment is back in their custody. From a legal perspective, the account is cancelled; anything left is a billing detail.
VIVA LA NET NEUTRALITY!
http://www.dslreports.com/forum/r20544848-LIVE-from-Ottawa-Net-Neutrality-Rally-on-Parliament-Hill
I went there, can you tell? :]