Welcome to the Costco Customer Service page. Explore our many helpful self-service options and learn more about popular topics. The Costco Shop Card cannot be used as a form of payment for Same-day Delivery powered by Instacart orders. If you would like to use a Costco Shop Card to pay for your order, we recommend utilizing our 2-Day Delivery option. Costco Technical & Warranty Services Volume Sales: Export & Domestic Order Status Preventing Fraud Shipping Rebates Recalls & Product Notices Returns and Exchanges Returns Policy Accessibility Locations & Services Locations & Services Find a Warehouse Locations Coming Soon Hours and Holiday Closures Gasoline Hearing Aid Center Optical Special. Once your membership has been verified, select the Business Details section to manage your additional cardholders. Visit the membership counter at any Costco warehouse. This is in addition to the fulfillment timeframe listed on Costco.com. From that point, it will take up to an additional 2 business days for you to be contacted to schedule your delivery appointment. Costco Customer Service To speak to any warehouse department, such as the Tire Center or Pharmacy, find and call a Costco near you. You can view a full list of Costco Services on the Costco Member Services page. Each member must have a separate Costco.com account to access a Digital Membership Card. Only Business members who also have an additional membership linked to the same account may see multiple membership cards on a single Digital Membership Card account. Welcome to the Costco Customer Service page. Explore our many helpful self-service options and learn more about popular topics. The Costco app is another way to find our locations’ hours. It’s free to download on the iTunes or Google Play app stores. As of June 30, 2025, exclusive earlier shopping hours for Executive members may be available at your local warehouse. Check store details for more information.