Are you eligible for any of the Carphone Warehouse upgrade deals. Nokia 735 can be had for £129 as a PAYG upgrade.
Iirc there's a section on cpw's web site where you can put your number in and it tells you if your payg phone is eligible for the payg upgrage subsidised price. You don't need to put that networks sim in when you use it as the phone is unlocked anyway.
Loads of my friends are very happy with their huawei phones most under £100 bought as payg upgrades off cpw
