This is Costco, you have a membership tied to your identity which they check every time you enter the store and checkout. Your order history is tied to your mem

This is Costco, you have a membership tied to your identity which they check every time you enter the store and checkout. Your order history is tied to your membership. There is no "anonymous" purchasing at Costco. They likely share your purchasing decisions with Visa whether you use the card or not.