On 16th March 2024, I bought a return ticket from Amsterdam to Rotterdam by NS app. Unfortunately, I couldn’t apply my discount subscription on the app. Because that option wasn’t seen on the app like previous one. I had to pay full price. Please can you check my subscription and my travel on 16th March and refund it please. The app still works like that. What should I do for my next trips? I don’t want to experience the same problem.
Thank you