If you use an Apple device such as an iPhone or iPad, you can select the Apple Pay payment method. To do so, select Apple Pay and click on the button "Pay with Apple Pay". Now select the desired credit card if you have several credit cards on file and do not want to use the standard card. If necessary, enter your billing, delivery and contact details. The information is saved in Apple Pay. You do not have to enter the information again. Then confirm the payment using Face ID or Touch ID, depending on the device you are using. You may have to press the side button twice first.