Hey @Denwil61,
Welcome back to the community and thanks for taking the time to post.
I'm really sorry to hear of the issues that you're having in the Canary islands using your mobile.
Did you activate roaming on your device before you left the UK?
Have you followed all of the advice on our roaming hub section here?
If your wife's services are working, did she get a new sim card recently?
Regards,
Steven_L