Once you set up a payment method, you can make automatic monthly payments from the method you have set up.
Confirmation
The last card you registered will be set as your payment method.
The payment will be made from the card that is displayed as "currently set as payment method".
Setup
To set a payment method, tap Pay with this card on each payment method detail screen.
You can set up to one payment method.
Once the setting is completed, the other payment methods that were previously set will be automatically cancelled.