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Using Samsung Pay with your Westpac Mastercard Debit card

When you add your Westpac Mastercard debit card to Samsung Pay, the card will default to the Mastercard network for payments with Samsung Pay. Payments made via the Mastercard network are processed by Mastercard in the same manner as other payments on the Mastercard network and are debited from your linked default account. Transactions processed via the eftpos network will be debited to your primary linked account.