Hello,
In August i will be travelling to Croatia (from Groningen). I bought a global pass so i would be able to travel from Groningen to Zagreb and back. when I want to make reservations for seats, interrail indicates that it is possible with several sites, including the German one. If I want to book there, the reservation costs 100 euros... Why do I still have to pay for that if I already have a global pass with interrail and is there a way for it to be cheaper?