SCAM. This is just one of MANY GSA scams out there. They are companies that hire commission-based workers to rip you off in an attempt to land you a "huge government contract." They claim to cut through red tape and get you lots of money. They refuse to remove you from their phone list and just hang up on you if you ask. I've called repeatedly, as is my customary response to scammers, which blocks their ability to make phone calls.  Please do the same.  I like to also act like I'm interested in their GSA service and keep them on the line up until they ask for a credit card or until I feel like I've had enough fun. It prevents at least one more person from getting scammed.