I am trying to book a ticket for Oct 1st from Seefeld-Budapest. I can access the OBB site and select the train(s). When completing the booking the site will not let me continue until I enter a "voucher" number. I have no voucher...... and will be paying with a CC. How do I get past this "voucher" block?
Also I don't seem to be able to reserve our seats for the Salzburg-Budapest leg.