If you’re eligible for a PAYG upgrade at Carphone Warehouse (http://www.carphonewarehouse.com/mobiles/pay-as-you-go/upgrades), you can currently grab the Microsoft Lumia 435 for just £24.99, on Orange, T-Mobile, Virgin or Vodafone.
Microsoft Lumia 435 specs include a 4in display (480 x 800), dual-core Qualcomm Snapdragon 200 processor, 1GB of RAM, 2MP rear camera, VGA front camera, 8GB expandable storage, and 1,560mAh battery.
Free delivery. No top-up required. From £39.99 with a new PAYG SIM.
(Thanks to BuzzDuraband at HUKD)