Talk:United Kingdom/@comment-73.246.142.232-20170806231225

I had high hopes that Giffgaff would be a hassle-free EU roaming option for non-UK residents, as they have made it easy to buy, receive, activate and top off their SIMs anywhere in the world without need for an intermediary or a UK credit card. They also allow removal of the content lock with any machine-readable passport.

Unfortunately, per their online Help forum, their SIM will not work outside of the UK until it has made contact with the domestic network. I.e, it is not possible to EU roam without first using the SIM in the UK.