Hello Llaisheawheang83
That’s a pitty, you should have checked the conditions upon purchase…
You cannot retrieve your SNCF ticket in Switzerland and must purchase a new ticket from either SBB or DB.
The ‘ticket’ you purchased from SNCF is not valid for travel as it consists of a reservation only. The paper ticket valid for travel is solely generated once you retrieved it from a ticket machine in France. If you travel with your SNCF reservation only, you will be fined for travelling with an invalid ticket.
Kind regards,
Roland