Dreams of owning a home in the city has cost 15 Mumbaikars, who were all "sold" the same Andheri flat by a gang of two conmen. After cops acted on two complaints from the "buyers" and arrested the duo from the western suburbs, it's come to light that in a multi-crore scam, the duo posted the advertisement of the same flat on multiple real-estate classified portals and duped scores of people by 'almost selling' the flat to all of them.