A drop-off fee applies when you park the car and end your journey in the drop-off zone (marked "Zone A" on the work area map).
Drop-off zones are part of the work area and are usually a bit outside the city center. The drop-off fee does not apply if you start and end your ride within the same drop-off zone.
View the drop-off zone and costs for your work area here:
Zone A: € 2.99
Zone A: € 2.99