UK Lycamobile SIM Card preloaded with 6GB data & 100 International mins | eBay
PrePaid Europe (UK Lycamobile) 30 Days 7GB SIM Card with Unlimited Mins/Texts and 100 International Minutes to Call USA/Canada and Free Roaming in All EU Countries : Amazon.sg: Electronics
What are mobile roaming and data roaming charges? - Uswitch
Lycamobile - Best Pay as You Go SIM Card for Spain & Europe