I don’t know the definite answer but I’m fairly sure that American Express pays Costco a large sum of money and in return Costco requires that all it’s customers obtain an American Express card. This way American Express earns more money because people are forced to use their card to go to Costco and Costco gets money from AE.
I don’t know the definite answer but I’m fairly sure that American Express pays Costco a large sum of money and in return Costco requires that all it’s customers obtain an American Express card. This way American Express earns more money because people are forced to use their card to go to Costco and Costco gets money from AE.