Just bagged myself a FREE Samsung Galaxy S2 with 300 minutes and unlimited texts for £18.13 per month at Affordable Mobiles. I've also purchased this through a Quidco link which gave me another £40 cash back. I've also noticed you can get £40 cash back with Top Cash Back for those of you who are members of that site. If like me, you don't need the 100mb of data that comes as a bolt on at £3 per month then you can take this off which effectively makes your line rental £15.13. The reduced line rental is by redemption but I've had experience with Affordable Mobiles before and never had a problem with them.