In a similar question asked on this forum it was indicated that we should first block or terminate the OV-Chipkaart, but the answer we get from OV-Chipkaart when trying to do so is that we should first cancel any subscription we have on the card, including the Dal Voordeel 2 klas subscription at a public transport company counter, which is impossible for us since we are on the other side of the world! Then fill in a form and send it to an address with the card included, which is also impossible since we no longer have the card...
It is also important to mention that we no longer have banking accounts in the Netherlands, and we no longer have the OV Chipkaarts in our possession since they were discarded when coming back home.
So what can we do to successfully cancel the Dal Voordeel 2 klas subscription and avoid outstanding charges?
Beste antwoord door Pe_pe
Now you should ignore the warning by TLS and block your OV-chipcard. When NS sees that the cards are blocked, they can end the subscriptions.