Hi there, we're so sorry to hear that some of your mealworms arrived deceased. If your order was covered under our Live Arrival Guarantee, please don't hesitate to reach out to our customer service team with pictures of the condition of the worms. We'd be happy to offer you a credit or replacement shipment. Please keep in mind that due to the perishable nature of the product, we cannot guarantee live arrival when using economy shipping. As mentioned in the description, we highly recommend opting for FedEx Priority Overnight shipping with cold packs. If you have any other questions or concerns, please feel free to contact us using the link at the bottom of our website. Thank you for your feedback.