How to redeem Costco cash back?
You can check your account\'s balance by using your bank\'s mobile application or bank\'s website online, ATM by phone, through your bank statement, or by an appointment at the branch.Members can view their balance on Costco.com. This is how: Go to the main page, then look for Costco Shop Card Balance (located at the lower right). Enter your Costco Shop Card number.