Then either you misunderstood or he did, because that's not how Groupon works. When a Groupon voucher is purchased the company it is for doesn't get a dime until it's actually redeemed, Scoopon are different but not always as well.
Don't get me wrong, he's a crook but stick to the actual facts. Can someone point out the actual reg that makes it illegal for a Joy/Scenic Flight to be carried out in an RAAus Aircraft, genuinely curious as it's not a field I've looked into much and a bit of googling around doesn't seem to reveal much unfortunately.