Only the Primary Member of a Costco membership can cancel it. If you are not the person who started the membership, you will have to get that person to cancel the membership. [1] X Research source If you can’t find your membership card, you may have to verify your identity at Costco with information like your phone number, address, or birthdate. Make sure you know the phone number and address you used in your membership application if they are different from your current ones.
Your browser may ask whether you want to allow Costco’s website to know your location. Click “allow” so the location tool can determine which Costco is nearest to you.
You may also need to answer some questions about your personal information, so make sure you know the address and phone number that would be on file for your membership if they are different from your current ones.
Your annual membership fee will be refunded in full.
