How do I change my default card in Apple Pay?
You can change your default card in Apple Pay in either of the following ways:
• Open the Wallet app
• Hold down the image of the card you want to make your default card
• Move it to the front of the screen
You can also do this by opening the Settings app:
• Select Wallet & Apple Pay
• Tap Default Card, then choose the card you want to make your default card