The MEXEM Debit Mastercard can be used anywhere Debit Mastercard is accepted, both to make purchases and to withdraw cash from ATMs. ATM withdrawals: Some ATMs require that you choose Checking, Savings or Credit Card. If you are presented with this choice, select Checking to withdraw cash using your Debit Mastercard. Note that Debit Mastercard balance inquiries will not work on ATMs. To check your current available balance, log into mobile TWS and look at the Account/Balances screen.