Why can the actual costs differ from the cost estimate?

We only charge the actual costs that have been incurred. These can differ from the cost estimate, for example due to changes in ticket prices or airport taxes.
In the unlikely event that costs will increase, we will inform you in advance. If the actual costs are lower than indicated in the cost estimate, we will repay the difference. 
We can only provide an overview with the exact costs based on the final cost settlement after arrival in the Netherlands.