Here are a few ways to troubleshoot:
Make sure your RaceTrac app is updated to the latest version and that your device has a strong internet connection while attempting to redeem the reward.
Make sure you have enough points (175) to redeem the reward.
Check your “Unclaimed Rewards” to ensure that the Fuel Reward has been added to your account. If the fuel reward has not been added to your account, follow the redemption steps.