Originally Posted by
Wozza2404
For the EU, you can get Three mobile PAYG sim card in the UK and use the data and texts from that in any EU country in their "feel at home" programme, for free.
Feel at Home is for specific countries, not any EU country.
http://prepaid-data-sim-card.wikia.com/wiki/Euro3
It currently includes several non-EU countries
In the UK and 18 roaming countries like Ireland, Sweden, Denmark, Finland, France, Austria, Italy, Switzerland, Norway, Israel, Australia, USA, Macau, Hong Kong, Sri Lanka and Indonesia and now in Spain and New Zealand too.