I have an account already as I buy tickets via the SBB phone app. However trying to log on via my Mac, it just redirected me to a registration page. If I tried to re-register it told me my user name is already taken
Then half the time it shows I can buy the ticket I want to Italy in September online, and the available fares. The other half it has a fit and says it is not available to buy on line.
Now I just managed to log in, once logged in it only allows you to buy tickets 30 days in advance, unlike before logging in.
Swiss efficiency is definitely a myth