Cheapest Dual Core Android phone
Not sure it works for everyone, but it worked for me.
Call 0800 956 6000 (option 2 and then option 1)
Normal Price is £9.99. Based on existing customer, I was given it for discounted price of £4.99. Delivery charge £6.98.
I used the existing EE number which I got for £1 from eBay included with £5 top-up. I bought 2 handsets, since me and wife had EE numbers. Total cost £4.99*2 + £6.98 = £16.96.
Dual-core 1 GHz
Android OS, v4.2 (Jelly Bean)
4 GB, 512 MB RAM
microSD, up to 32 GB
Locked to EE. ebay Unlock 99p http://www.ebay.co.uk/itm/151296727911