What is the difference between BullRush credits and promo credits?
Only one is "real" money
The main difference between BullRush credits and BullRush promo credits lies in their withdrawability:
BullRush credits (represented by a Yellow coin) have real monetary value and can be withdrawn from the system for actual money.
BullRush promo credits (represented by a Red coin) can only be used within the system for activities like entering competitions or challenges, but they cannot be withdrawn.