Can I exchange or cancel an international train journey that I booked with my NS-Business Card?
Changing the date and/or departure time or cancelling train tickets is only possible if the terms and conditions allow it.
Flexible fares have less or no exchange or cancellation fees than non-flexible fares. Generally speaking, non-flex fares cannot be cancelled or exchanged.
The specific terms and conditions for the booking you have made are explained for each ticket in My NSI.