To participate in the tellculvers.com survey (https://tellculvers.space/), customers must meet a few basic requirements. You need a valid receipt from a recent visit to Culver's, as it contains the survey details. The survey is usually open to legal residents of the United States who are of a certain age, typically 18 or older. Employees of the company and their family members may not be eligible to participate. Also, the survey must be completed within a limited time after the purchase, usually a few days, to ensure the feedback is fresh and accurate.