Have you configured your SIM APN settings? If you are outside of the UK have you switched on the roaming services in your device’s data settings?

To get to the device’s APN settings on iOS:
1. Select “Settings”
2. Select “Mobile/Cellular Data”
3. Select “Mobile/Cellular Data Networks”
4. Enter Network APN

To get to the device’s APN settings on Android:
1. Select “Settings”
2. Select “Connections”
3. Select “Mobile Networks”
4. Select “Access Point Names”
5. Select “Create New APN”
6. Once APN settings are entered, press save and select the profile
7. Once the profile has been saved please ensure that this is the profile selected and in use if your device holds various APNs