Today I thought I'd try again to get SBB tickets from Tirano to Chur and then on to Zurich and Luzern. When I try to buy the desired ticket, today the message is:
Dear customers,
There is no access to Ticket Shop due to maintenance work.
We recommend that you buy your tickets at our ticket machines.
We apologise for the inconvenience.
The SBB.ch team
I have tried several times before and never succeeded in buying tickets for May 8, but didn't receive this precise message.
Supposing I take the message at face value and buy my tickets in Tirano, what is the likelihood that I can arrive at Tirano at 10:52 on Trenord and then buy a ticket to Chur and get on a train departing at 11 a.m.? At least I would have 13 minutes in Chur to try to buy my ticket on to Zurich/Luzern.
I'm puzzled because the forums don't mention others not being able to buy SBB tickets.