All they've done is coerce mid range spenders to go * deep for Sasuke. The spenders do not care about rewards they are literally throwing money so that the opposing players do not win the #1 prize.
The #2 prize is literal *. I saw this coming and it's sadly hilarious now because these people are stuck in a spending competition - whoevers credit card or bank cancels their card first loses. Really sad but all Oasis seems to care about is draining bank accounts before the majority of spenders realize they are rigging things to abuse peoples loyalty.