22-08-2014 06:46 PM
22-08-2014 09:22 PM
As far as I know iMessages get sent over the data connection (wifi or carrier data) rather than as regular SMS messages (which on 48 would be charged at 25c per international text).
http://en.wikipedia.org/wiki/IMessage#Features
iMessage allows users to send texts, documents, photos, videos, contact information, and group messages over Wi-Fi, 2G, 3G or LTE to other iOS or OS X users, thus providing an alternative to standard SMS/MMS messaging for most users with devices running iOS 5 or later.
Why not try it and see what happens? Worst that happens is that you're 25c down?
Hope this helps