I kept getting this scam also. Finally I decided to play it out. I gave them a price, they gave me a bad credit card number, I claimed it was good, and then I sent a box of dog sh@t to them. Sure it cost me $8.00 in shipping, but I’ve never heard from them again.
This is such a laim scam. If someone tries to pull this on you, here's what you should do. Go along with it. Give them a price for the product, let them give you a CC number, and tell them that their order has shipped. Then ship them a bix filled with Dog Sh*t. It might cost $5.00 for shipping but it's worth it. They won't bug you again.
Yup - I got the same fax. If you notice it came from a fax server.
FYI - They may also send you a check and let you cash it before you send it. LOOK OUT - you are not safe. The check that you receive is a "Washed Check" (do a search to learn more) or a copied check that has been changed and printed on a color laser printer. The check may clear but once the bank learns of it they will pull the money out of your account. Hence you get it from both ends. You spend money to buy product to resell - you put the check in the bank - the money is removed from the bank - and your short the cost of the product and the checks amount.