This is not on the website, and as far as i know will be store specific (i havent looked in any other stores) but i thought i'd share just in case. Found in the Southend branch of Wilkinson just randomly placed down the DIY aisle, the shelf said £24 all over it but all the carseats had '1/2 marked price' stickers on them. Were a good few left after i took one.
I got a member of staff to check for me and she confirmed £12. Absolute bargain!
Grey and black so can be used for a boy or girl, all nicely padded etc. I have provided a pic of my reciept for proof!