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Update Account Info

To update your Membership details and/or email address:

  1. If you require assistance amending your membership details please call 01923 830477
  2. If you would like to change the email address associated to your Costco.co.uk account please email customercare@costco.co.uk, providing the following details:
  • Costco Membership Number
  • Current email address
  • New email address

To update your marketing preferences:

  1. Choose "My Marketing Preferences" under "My Account."
  2. Select mobile button to turn on/off the option to receive transactional texts
  3. Select email button to turn on/off the option to receive marketing emails about the latest promotions and current savings available online and your local Costco warehouse
  4. Select "Update preferences" to save your new changes