Comcast has an arrangement with Western Union to accept payments.
The locations in Dumfries are:
Paul Cash, Inc. 18103 -Triangle Shopping Center – the same plaza as the Comcast payment center
Dumfries Shell #703 - 17250 Dumfries Road
Bottom dollar #2910 - 17120 Jefferson Davis Highway
Cherry Hill Mobile #702 – Check Info cash #22027 – 16697 River Ridge Boulevard, Woodbridge