I have a question regarding reservations. I would like to take the night train to Vienna on Saturday, October 8:
20:03 UTRECHT CENTRAAL (Netherlands) 12h 11m, NJ 40421 Night Jet
On this train I need to reserve a seat, but it says on the webstie of interrail that this can be done up to 180 days in advance. So through the website interrail.eu this is no longer possible? An alternative is to book via https://shop.oebbtickets.at/, but how can I be sure this is the same train?
On the interrail website I have to pay € 16,- to make a reservation and on the oebbtickets website another € 3,- why do I have to pay twice?
As a final question I would like a sleeper compartment, how do I make sure I reserve a sleeper compartment?