Hello!
I have NS Flex (the one with 40% discount during off-peak hours and weekends) on my OV chipkaart. I am going to travel from Amsterdam to Eindhoven during off-peak hours next week. When I plan my journey in the NS app, they want me to buy a ticket. However, I traveled by trains before, discount worked perfectly, and ticket was never needed. Is ticket obligatory for longer routes?
Also, can I purchase the Young Person's Day Ticket Off-Peak Hours if I'm 18. It's written that ticket is for people aged 12 to 18 but I'm not sure whether 18 is included.
Thank you for response!