To pay with the Q-Park App, you must add at least one payment method to your profile. Follow the instructions in the app when you create your profile.
When you end your parking session in the app, the price of your parking will automatically be charged to the payment method you selected when you created your profile.
If you want to change your payment method or add a new payment method, you can do so in your profile settings. Select the profile icon at the bottom of the screen. Select "Payment methods". Select a payment method to edit it or select "Add payment methods" at the bottom of the screen.