New cashback deal spotted today at e2save. Pretty reliable company for cashback. See ducky's thread here: http://www.hotukdeals.com/forums/showthread.php?t=197838
With 14 months of the 18 months line rental free this works out at £6.66/month for 400 minutes + Unlimited texts if all claims successful and claimed on time.
Plus £36.50 further cashback possible on Quidco...which would make this less than £5 month overall for the 18 months.
Seems like a good deal to me for the contract - even if the phone isn't great!