Thanks for coming back to us @Phagie, think there's been some confusion over your posts, as it appears you've started a new thread, when you were best of responding to the thread you started in February.
Before you next go abroad, please ensure roaming is switched on, via your self-care account, as well as on your handset.
If you need any further assistance with this, feel free to come back to this thread
Kindest regards,
David_Bn