Cinnamon Toast Crunch is giving away one million FREE boxes with this new rebate offer! Buy an eligible size box (12oz, 16.8oz,19.3oz or 27oz) in-store or online at any retailer between September 1st and September 30th, then upload a photo of your receipt! After verification, you will receive a reward code within 24 hours, where you can then select preference to receive payment. You can choose to get your rebate back via check or Venmo.