KAVYOMEE If I understand you correctly, you want to buy the upgrades from 2nd class to 1st class. You can also buy these upgrades at every ticket office in Switzerland, I think that it were better at a ticket office of a railway station and not at the ticket office at the pier before boarding the boat. I don’t know if they can sell train tickets or only boat tickets. An upgrade is necessary only for the train, you can stay in 2nd class (lower deck) on the boat, the 1st class is on upper deck.