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  2. To update your registered Costco.com email address simply: Visit the Costco.com home page and select Sign In / Register (located in the upper right-hand corner). Sign in using the existing email address and password. Visit Account Details in your Account.

    • Account Details

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  3. To update your account, begin by selecting Sign In / Register. This is located in the upper right-hand corner of the Costco.com home page. To change your Sign In email address: Choose Account Details in the Account menu. Select Edit next to Sign In Email. Enter your current email address and select Send Verification Code.

  4. Please call our Customer Care Centre on Freephone 0800 0324 324 (Our Online Call Centre opening times are: Monday - Friday: 9AM - 8PM, Saturday: 9AM - 3PM, Sunday: 11AM - 3PM, Excluding Public/Bank Holidays). Or you can email us at: customercare@costco.co.uk

  5. Warehouses. My Account. All Cart(s) Cart

  6. Cookies are small text files stored on your computer that tell us when you're signed in. To learn how to allow cookies, check the online help in your web browser.

  7. Forgot your password? Login. Having trouble logging in? Please click here. Current Warehouse Member &. New to Costco.co.uk? Create an Online Account.

  8. Your Costco membership can be verified: online* through Interac® verification service. in-person at the Membership Counter at your local Costco warehouse. contacting us by phone. *Online verification is not available on Safari web browsers.

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