Hi ​@Damien-Miller.

Thank you for your post. I’m sorry your daughter is without data and calls while abroad.

To help her device recognise the new number and register on a local network in Spain, please ask her to:

Manually select a partner network – connect to Yoigo or Movistar in Settings > Mobile Network > Network operators (or equivalent).

Perform a network reset once connected:

Android:

Open Settings

Tap General management

Tap Reset, then Reset network settings

iPhone:

Go to Settings

Tap Phone

Tap My Number

Use the delete button to remove the old number

Use the keypad to enter the new number

Tap Save

Go to Settings > Messages and turn iMessage OFF

Go to Settings > General > Reset and tap Reset Network Settings

Once the iPhone restarts, go to Settings > Messages and turn iMessage ON

This will help the phone recognize the new SIM and verify it on the network

After this, please ask her to try making a test call and using mobile data again. 

Thanks,

Marquerita

The iD Mobile Team