Hi Steve, sorry to hear of your difficulties using your iphone in spain.
If you had network access on your phone I would also advise you can have your APN settings sent to your device, just text “ALL” to 789922.
Here is our help page for Iphone 6 which includes a section about the APN settings if you search in the bar at the top.
It advises you go to SETTINGS > MOBILE DATA > MOBILE DATA NETWORK and then:
1) If you've had a new SIM since December 2017:
Internet APN Settings:
APN: goto.virginmobile.uk
Username: None
Password: None
MMS APN Settings:
APN: goto.virginmobile.uk
Username: None
Password: None
MMSC: http://mms.virginmobile.co.uk:8002
MMS Proxy: 193.030.166.002
MMS Max Message Size: 1048576
2) If you've not had a new SIM since December 2017
Internet APN Settings:
APN: goto.virginmobile.uk
Username: User
Password: None
MMS APN Settings:
APN: goto.virginmobile.uk
Username: None
Password: None
MMSC: http://mms.virginmobile.co.uk:8002
MMS Proxy: 193.030.166.002
MMS Max Message Size: 1048576
I hope this helps! Let us know how you get on.
All the best!
Molly