I purchased a 2nd class swiss travel pass, and I need to uograde to 1st class to use it on the Glacier Express. I have already reserved seats in the " excellence class," but need the actual train ticket. I am unable to make that upgrade. Not offered for a "one day" upgrade, and only offered for the "half fare" pass on the route specifc upgrade, on the Swiss Travelpass website link for upgading.Further, I am for some reason unable to make phone connection with SBB train. Help! Thank you
Jane
It is possible to wait until you get there. I paid the difference on the train this is a common mix up that the conductors are prepared for.
I did not have to upgrade my STP to 1st; the conductors just charged me extra for the seat reservation in 1st.