You can always park your Amber free of charge at a hub or in a public parking space in a service area. Amber has parking permits for all of these spaces.
If you park in a car park or a paid parking zone, you will have to arrange the payment yourself.
Please end your trip when you are done. Otherwise, the trip counter will keep running, and you will need to pay too much. As soon as you end your trip, someone else can start theirs.