I own a blackberry 9900 and im visiting Cuba in a few days.
I have been on the t-mobile website and they give me this message;

If you've got a BlackBerry® you can access your email and use the internet no matter which country you're in.

Data charges are automatically capped at £4 per day*
Usage is charged at £1.50/Mb in Europe or £7.50/MB in countries outside Europe, up to the £4 cap
*Pay monthly customers with a BlackBerry® who use email and the internet abroad are capped at £4 per day everywhere, and £48 per month in Europe.


On my current contract (my dad controls my contract and he pays monthly) I have an unlimited internet booster. I'm not quite sure how this will work in a different country. If it is £7.50/MB and I can use up to the £4 cap, how much data will I be allowed to use and will this count as my unlimited internet or will this money add on to the bill?

Please explain this to me?