Do you know which provider is best to go with when I want a sim card only to send text messages from Latin America back to a UK mobile. I am going travelling for a few months and want to send text messages cheapest way possible if I can as I will be sending a lot to family and friends etc. I am going to cancel my existing contract but at the moment if I send a text with my contract sim from abroad it costs 40p, is this standard? Or if I send a picture message 20p.

Thanks for all suggestions/advice in advance.

Sophie