Yes, you can. Did you receive a fine on the train? You can appeal via NS Customer Service, but only if you did not pay the fine directly on the train.

Important:

• Always pay within 14 days to avoid additional costs or collection.
• You can still appeal after payment. If your appeal is successful, you will receive a refund.
• Paid directly on the train? Then you can no longer appeal.

More information about appeals or payments can be found on the NS website or via their customer service.