Thanks to rflfimo on pointing out this deal in my previous deal:http://www.hotukdeals.com/deals/ee-huawei-ascend-y330-mobile-phone-black-39-99-argos-2081182
This phone is priced as £35 with Mobile by Sainsbury's but I can confirm that it is Unlocked to any networks. THis has been tested so far with EE and GiffGaff and works great!
Talking to the lady in Sainsbury's yesterday, even though those phones are bundles with a Mobile by Sainsbury's box, they are all unlocked.
The phone is a temp for for myself however for £35 it isnt too bad at all! It does only have a 4 inch screen, 512mb of RAM and a 1.3 dual core processor but it Does have an SD Card slot for up to 32gb. I noticed last night that you can actually specify to use the SD card as the main storage which is cool :)
Also you can get Double Top Up of your payg credit until Xmas Eve!