Please ensure your device is connected to the internet and select 'Store' > 'Tokens' > 'Free Tokens' from the Pause Menu. This will prompt the game to claim any pending offer rewards.

If you've still not received a reward, you will need to contact Tapjoy customer support to let them know about the problem:

Very rarely, Tapjoy’s system will not correctly pass information back to the game to unlock the reward. In these cases, Tapjoy may be able to resend the reward.