Price matching gamestation I believe. Not that I've ever had any problems with gamestation but I think I'd choose Amazon if I had the choice.
A lot of people are struggling with slow delivery times from Amazon during the Christmas period (they're blaming it on the bad weather). If you need this as an Xmas present you may want to invest in first class which is an extra £1.99 (£21.98 in total). Or you could take the risk at your own peril. ;) I'll leave that decision up to you.