Phones4U has made a mess with the so called "sim free" Lumias. When I ordered mine there was no mention that the phone was locked to EE on their website (now they have rectified this). I even called the customer service and a lady guaranteed me that the phone was unlocked to all networks. They are obviously a bunch of incompetent people. So I ended up paying ?459.95 and spending all weekend frustrated trying to find a way to unlock the phone. Apparently the only website providing the service is support@mobileunlocked.co.uk for ?55.99 but it might take months before they will be able to do it. So I will end up paying ?515.94 and void the warranty. I am returning mine to 4PU under the 7 days agreement. Expansys has the Lumia 920 in white for ?554.99 and they say that the red one is now in stock and taking pre-orders. I'd rather give my money to a serious company like Expansys that to those f...... at P4U.
Best wishes
Best wishes