To redeem your McDVoice survey reward, first, complete the mcdvoice by providing honest feedback about your recent McDonald's visit. Once finished, you'll receive a validation code. Write this code on your receipt and bring it to any participating McDonald's location before it expires. Present the receipt at the counter or drive-thru to claim your reward, which may include discounts, free menu items, or special offers. Make sure to follow any terms and conditions, such as minimum purchase requirements. This is a great way to enjoy savings while sharing your experience with McDonald's for better service improvements.