For assistance with account login or membership validation issues, please contact the Costco Membership Help Desk:
- Phone: 1-888-426-7826 (Canada)
- Submit a Request: customerservice.costco.ca
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For assistance with account login or membership validation issues, please contact the Costco Membership Help Desk:
Contact our dedicated Senior Support Service if you need help getting started or with an existing order.
Daily: 8am - 11pm ET