The Intterail app explains that a supplement is required and that it is included in reservation. But when I go to make reservation there is no option to add supplement (unless I am missing something) and the reservation amount is not enough to include supplement. So is it really an option to pay the supplement through the app? And if not what is the best way to do this?
Answer
Using Interrail app for buying supplement on Railjet to Venice
Best answer by thibcabe
The supplement costs 10€ and the seat 3€ in 2nd class. Or 15€ with a free seat reservation in 1st class if you buy through the railway company directly : tickets.oebb.at -> add Interrail/Eurail as a discount and select one-way tickets.
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