I have no idea if its a mistake and I don't see it advertised on Amazon but if you add Halo 4, XBL Gold 1 year membership and Xbox 360 250gb console to your basket and proceed to checkout it applies a discount and your total to pay is £150 with free delivery.
Halo 4 - http://www.amazon.co.uk/gp/product/B0054OGIRQ
Xbox Live - http://www.amazon.co.uk/gp/product/B000B5KMSE
Console - http://www.amazon.co.uk/gp/product/B005HHTK70
Go Through Nectar Card + Get 450 Nectar Points Added.
Add Fifa 13 or another game for an extra £20. Even more of a bargain (can sell fifa to cex for £28)
Have to add Black Ops and Fifa to get them for respectively £30 and £20
Works with Need for speed most wanted too, which also is £28 cash at cex.
Guys you need to take the order all the way to the checkout for the promotional discount to be applied, it wont just show up in your basket.
Free Halo 4 and Xbox Live with our Xbox 360 Console Bundle
Buy an Xbox 360 250GB Console and get Halo 4 and Xbox Live Membership for free, Call of Duty: Black Ops II for £30 and an additional game for £20.