If your Coin balance is insufficient, you will not be able to redeem that reward. You may continue collecting Coins through eligible promotions and return to the Shop once you have enough.
Help Center
What happens if I don’t have enough Coins for a reward?
Reward Shop
Are there any restrictions on the Shop rewards purchased with Coins?Do Casino Shop Rewards Ever Change?Is there a limit to how many offers I can redeem with Coins?What happens if I don’t have enough Coins for a reward?What is the Shop and how does it work?Why can’t I see the Shop items?Why Do Casino Shop Rewards Differ Between Players?Why was my Shop reward removed?