okay so if like me you needed to get the latest mobile phone when it first come out but was limited by the data or minutes but still pay a high price then it's time to call three!
I got the Sony Z5 last October and my contact included 4gb of data and unlimited minutes. I found myself running out of data so I called three.. they offered me unlimited minutes and unlimited data for the same price if I was interested! of course! there was no mention of extending my contact our increasing the price... happy days!
this will only help those who like me rushed out to get the latest phone at a price! good luck :)