Some individuals are currently stuck in the EU due to the Coronavirus outbreak and this prevents them from getting the customs stamp on time.
Currently it is not yet clear wether customs and tax administrations will provide exceptions for these cases. We have contacted the Dutch customs and tax administration and they are aware of the situation. The issue will be discussed internally.
Currently you are advised to go to customs at your earliest convenience, also if you are already late, and explain your situation to the customs officer. If you have a flight itinerary that shows a booked and missed flight due to flight restrictions please bring this with you to customs.