We've ran a few deals this week for these refurbished Xbox One consoles and they sell out fast. I just about managed to snag one myself yesterday. Today's variation of the deal comes with Assassin's Creed IV: Black Flag and Assassin's Creed: Unity for £224. You might be able to get it for less though as there's an option to make an offer. Posters over on HUKD have claimed that they've had offers as low as £210 accepted straight away, so try your luck.
This might be a refurbished console, but it still comes with a 12 month warranty.
Thanks to reindeer333.