All the costs are added to the credit card* which you used to register. You can use a normal credit card as VISA, Mastercard or American Express or a prepaid credit card as well.
You can check the overview of your trip via the app in « My statements » through the top left of the drop-down menu. You will also receive an automatic e-mail with the estimated costs at the end of your trip. 💶
You can easily modify your credit card via the app. ⬇️