Hello @alinecrouquet
Sorry to learn your phone has been stolen.
Regarding to your file, I noticed that you got a new SIM card yesterday 🙂
The Swisscom Community is a place where customers help each other. In the future, if you don't find here the assistance you need, please use our contact form. And remember you can order a new SIM card (and other features) directly in your Customer center.
Have a nice day,