Thank you for sharing this with us. We're so sorry for the trouble you've had in finding the Dog Chow Beef formula. We advise that you check in with Sam's Club support team, as they can provide the most accurate information about their stock and sizes at this time. Please know that we try to ensure that consumers can obtain their preferred product, flavor, and size at a store near their home, and your feedback will be forwarded to the appropriate department within our company for their review. For any other questions, don't hesitate to contact us by following this link: https://www.purina.com/contact-us. - The Dog Chow Team.