And then you say the prize with coming in tokens paid by the exchange, what only means you don't really have the 10BTC you will not pay them, and you will user $2 to make another shit token to pay the 10BTC with that... And let me guess, the price of the token is decided by your exchange right? LOL.
I feel bad for your reputation, you haven't started the business, and already you are burning that reputation... too bad.
Are you stupid? ) Read the meaning of the word "equivalent":
https://www.oxfordlearnersdictionaries.com/definition/english/equivalent_1