The Link have the Samsung D500 on 8 months free line rental on a 12 month contract. Over the last 5 months of your contract, you pay the full price which amounts to £120. The other 8 months are given back to you as cashback which you claim from The Link at Specified intervals. For £120 (after cashback) you get the FREE Samsung D800 WHite Refurb, 12 months line rental (after which you may cancel), 200 x-net mins per month, 100 texts per month and double the number of minutes and messages for the first three months. If you purchase via QuidCo then you'll make £45 in extra cashback, bringing the overall cost down to just £75... a great price for this moder handset, even if it is a refurbished one.
Thanks go to datamile who originally posted this on the old forum.