Card numbers are checked for validity after they are entered. If you enter an invalid card number, an error message appears.
If you receive an invalid card number error message, carefully re-enter your card number. If you are attempting to use an ATM card, check the card to verify that one of the ATM card networks shown under the card number entry box are on your card. Not all ATM debit cards are accepted through the E-Payment Service system and you may have to select another form of payment.