that's strange. i know she's sold other chanel bags in the past that were authentic, so her feedbacks says. i don't know what happened. someone must reported her to ebay. ebay doesn't know the difference between an authentic bag vs. a counterfeit. that's another story... sorry it didn't work out.
you can buy the chanel cambon pochette for that price and a matching card holder? or you can buy the mini messenger? cambon line is still hot right now...so it will not be on sale (if ever) for a long long time!
i have the pochette and its a great little bag. =)