Before you Roam abroad, you need to check that Roaming is enabled on your iD Mobile plan AND in your phone settings:
How do I enable Roaming on my iD Mobile plan?
To enable Roaming in the iD Mobile app or My Account Online, you can:


How do I enable Roaming on my phone?
Enabling Roaming on your phone is easy. Here’s how:
iPhone.
- Open Settings.
- Tap ‘Mobile Services’.
- Tap ‘Mobile Data Options’.
- Check that ‘Data Roaming’ toggle is turned on.
Samsung Galaxy.
- Open Settings.
- Tap ‘Connections’.
- Tap ‘Mobile Networks’.
- Check that ‘Data Roaming’ toggle is turned on.
Most other Android phones.
- Open Settings.
- Tap ‘Network & Internet’.
- Tap ‘SIMs’.
- Check that ‘Roaming’ toggle is turned on.