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- Costco Customer Service
Ethics Hotline for Suppliers Supplier Diversity Customer Service Costco Shop Card Balance Order By Item Number Costco Technical Warranty Services Volume Sales: Export Domestic Order Status Preventing Fraud
- Contact Us - Costco Customer Service
Share your Feedback Chat Us Select the Chat Us option on this page *Hours vary by department Give Us a Call Hours vary by department Corporate Mailing Address PO Box 34331 Seattle, WA 98124
- Give Us a Call - Costco Customer Service
Costco Home Improvement Installed Products For Graber Window Treatments: 1-855-742-9130 For Lennox HVAC: 1-877-483-6226
- Find Answers - Costco Customer Service
Welcome to the Costco Customer Service page Explore our many helpful self-service options and learn more about popular topics
- Tire Center FAQs - Costco Customer Service
The Costco Tire Center offers several installation and maintenance services to get our members on the road, including rotation, balance, nitrogen inflation, nitrogen conversion, and flat repair Your local Costco Tire Center team will be glad to discuss any of these services in-depth Find your local Tire Center here
- Same-Day Delivery Powered by Instacart FAQs - Costco Customer Service
If you’re using “Same-Day” through the Costco app on your mobile device, you must log out of your Costco app completely and log back in If your information is still not updated after logging back in, clear your cache and cookies in the browser or the Costco app, whichever you are using the Same-Day Delivery website on
- Shop Card FAQs - Costco Customer Service
For further assistance, please contact us at 1-800-955-2292 All digital Costco Shop Card orders are usually fulfilled within 2 hours, but may take up to 24 hours to process If you need to resend the email, visit the tracking link in your Orders Purchases Back to Top
- Find Answers - Costco Customer Service
Some membership changes that require a transaction cannot be made on Costco com or by Live Chat - see below for information on how to make your requested changes Give Us a Call Sat - Sun: 5am - 7pm PT Chat Hours: Mon - Fri: 5am - 8pm PT
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