If your Internet does not work on your device, do the following: 

1. Check that you have successfully activated the SIM card. You can now activate your SIM card: https://support.digitalrepublic.ch/en/support/solutions/articles/33000247698-how-do-i-activate-my-sim-card-
2. Restart your device 
3. Check the APN settings of your device. You can find several guides for many devices in our support portal.
4. If you are still having trouble you can open a support ticket here.