Hello RolandP
Thank you for your message.
The price of 10 francs corresponds to the processing fee for tickets in Switzerland. (group)
For international journeys, the fee depends on the transport company. Fees also vary depending on the country. I recommend that you read the informations here.
You can also request a quote here.
For additional information, you can contact the SBB Contact Centre on +41 (0) 848 44 66 88 (CHF 0.08/min.) or via the chat function at the bottom of this page.
Have a nice day.
Greetings Tatiana