I was giving some type of automatic bill extension. After realizing the date it's set for is a few days to short would my service be interrupted if I make a post dated payment for 5 days after extension date?
Comcast doesn't accept post dated payments.
The information provided by @Again is correct. However, if you are still in need of assistance with your payment arrangement, feel free to send me a private message with your first and last name so I can access your account. To send a private message click on my name "ComcastChe", then click send a message.