Costco Complaints

How to make a Complaint to Costco

Call the Costco complaints line on 1-800-774-2678 in the event that you have a complaint about a service or product. Other contact methods such as post and online, and Costco solve to manage complaints in an orderly fashion keeping the client informed in any way times.

Costco complaint contacts like Phone, email and support form

Complaint via Phone number : 1-800-774-2678

The Complaint via Email :

Complaint via  Support Form :

Costco complaint website :


Corporate Head Office address

999 Lake Dr, Issaquah, WA 98027

For any general inquiries, please contact Costco head office number : (425) 313-8100


Can I chat with Costco customer service?
Select the Chat Us option on this page. *Hours vary by department. Hours vary by department.

Who is 800 774 2678?
For general questions about your Costco membership, please contact Costco Membership and Warehouse Services by chat or phone at 1-800-774-2678.

How do I speak to a Costco agent?
You can call the Costco membership customer service phone number at 1-800-774-2678. Alternatively, you may send them an email by visiting the “Contact Us” section on their website and selecting the email or live chat option from the “Contact Us” section.

How do I contact Costco technical support?
Using Costco Concierge is simple—just call 1-866-861-0450.

Hopefully, We helped you to get some genuine records for Costco Complaint information.

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