Priced increased from £9.99 to £14.99 (£19.99 O2), updated 24/04/15.
The Lumia 435 is the cheapest Lumia available, but still offers an impressive smartphone experience.
4" Touch Screen
Snapdragon 200 Dual Core Processor
Windows Phone 8.1 with Lumia Denim
PAYG Upgrade is available for eligible SIMs on the following networks:
Handsets from Carphone Warehouse are unlocked for use on any network, the handset will be a SIM Free variant, no matter which network you choose.
The deal link probably won't work correctly, as Carphone Warehouse deal links never seem to work.
To get the offer:
Visit the Carphone Warehouse website
Go to 'Mobile Phones'
Then 'Pay As You Go'
Find the Lumia 435 on the page for £29.99, go through to the item page where the price will be reduced to £14.99.
Alternatively, search for 'Lumia 435' on the carphone warehouse website, click 'Pay As You Go' on the search result, then switch the type to 'Upgrade'.
Don't forget Topcashback for £5.05 cash back, make it £9.95!