AFAIK this is true if you have the various 'plans' on your personal (yellow) card, which comes with additional cost. The 40% discount is there with one of these https://www.ns.nl/en/season-tickets/
So mobile payments, the blue card and the yellow card without season tickets are operationally identical from the user's standpoint?
- Automatically adding money to the card's balance when it runs low
- Getting back the money on the card when it expires
- Senior discounts for people over 65
- Being able to add a subscription when you do want one for a while