To check if your TellCulvers survey reward is valid, first review the receipt where the validation code is written. After completing the tellculvers.com survey, you usually receive a unique code that must be redeemed within a specific time, often 14 days. Make sure the code is clearly written and not expired. Check the date on your receipt to confirm eligibility. When visiting the restaurant, present the receipt with the code to the cashier. The staff will verify the code in their system. If unsure, you can also ask a store team member for confirmation before placing your order.