Caller said he was Comcast, I would be turned off unless I paid by credit card right now.  Didn't think so, hald him on line until he said it was just a courtesy call, he didn't have access to account information, if it was paid, sorry.
Caller ID said "Comcast"  I called Comcast, and I'm paid up, they didn't call, and that's not their number.  Looks like Jacqui is a credit card thief.
The Caller Type below doesn't include attempted fraud.

9043748000 has called 10 or 12 times...I suspect internet fishing on my number.

Keeps calling - Goggled number, got:    
Jacqui Crews,  6811 Buttontree Ln S,  Jacksonville, FL 32277 - Called back got welcome to Comcast - this is not there number - This is so weird...

Looks like they are still scamming as comcast.  If you call them back they forward their number to the real comcast.

Received a call from 904-374-800 on 12/4/08 from a person with a slight accent asking if I wanted to pay my Comcast bill early.  I hung up.  Is this a scam? Sure sounds like it.  The perculiar thing about this is that we never received our Comcast bill for the previous month and we paid two months together because we had not received the first bill.  We have never missed a payment on anything ever!!  I'm sure this is a scam.