Given their hazy and dodgy methodology, they are into illegal activities, beyond any doubt. Until that boils up to a far bigger level, the authorities may not act.

How can they buy out secretly the raffle coupons from hyper markets, and start calling the families, telling them that they have won a prize, come and collect. Any public draw must have an approval from the Govt, and in the face of it, how can they call and tell anyone that you have won, without any ballot.

When you reach there, they would take down your personal details, and write them down in a note book, (not in the computer) and start playing with the musical chairs through a well rehearsed sales magic, until they get hold of your credit card, there and then to rob you off.