Costco Customer Service Phone Numbers and Contacts.
Costco Warehouse has several different customer service phone numbers available for contact.
We have listed all of them here, along with the Costco customer care email address and mail address.
Costco Customer Service Phone Numbers.
Costco Membership and Warehouse Phone Number: 1-800-774-2678
Monday to Friday, 6am to 6pm PT
Saturday to Sunday, 8am to 5pm PT
TIP: Press 0 to get through quickly.
Costco Customer Service number – Alternative: 1-800-220-6000
Costco.com Online Orders phone Number: 1-800-955-2292
Monday to Friday, 5am to 8pm PT
Saturday to Sunday, 5am to 7pm PT
Costco Business Center Orders Phone Number: 1-800-788-9968
Monday to Friday, 7am to 5pm PT
Costco Concierge Services Phone Number: 1-866-861-0450
Monday to Sunday, 5am to 10pm PT
CostcPharmacy Customer Service Phone Number: 1-800-607-6861
Monday to Friday, 5am to 7pm PT
Saturday, 9:30am to 2pm PT
Costco Photo Center phone Number: 1-855-620-7579
Call Monday to Sunday, 6am to 8pm PT
CostcoTickets.com Phone Number: 1-855-258-3217
Monday to Sunday, 7am to 9pm PT
Costco Travel Customer Service Phone Number: 1-877-849-2730
Monday to Friday, 5am to 9pm PT
Saturday to Sunday, 6am to 5:30pm PT
Costco Customer Service Mailing Address.
To send correspondence to Costco’s Customer Service department, please mail to:
PO Box 34331
Seattle, WA 98124
Costco Customer Service Email.
To contact the Costco customer care, please use their email form.
Costco’s customer service email address is: email@example.com
How to Complain To Costco?
In order to complain to Costco, your first stop should be to relay your issue directly to your local store manager.
if that doesn’t get you anywhere, we recommend that you call Costco’s main customer service phone number, which is: 1-800-774-2678.
You can also email the company by using their email form. Choose the department and your issue, send your complain and you should get a reply in a few days.
For FAQs about orders, returns payments and more, please visit the company’s help page.