alt Hacker NewsCostco doesn't even accept Mastercard (credit cards), so they're kind of a unique case here where they intentionally choose to only accept one particular type of credit cards.
Costco doesn't even accept Mastercard (credit cards), so they're kind of a unique case here where they intentionally choose to only accept one particular type of credit cards.
Guessing they have their own branded card that they push you to use?