Has anyone tried to book a night jet train via OBB? I am a bit confused how do I put in my interrail global pass when it comes to reserving a seat. Apparently I should be able to online via the option "Interrail/Eurail - Globalpass" under discount but I can't seem to see that… if anyone has any guidance or suggestion on this that would be amazing! I am intending to travel from Innsbruck to Amsterdam. For some reason the OBB number online doesn't work when I call either. 

Thanks in advance ! :)