Why can't I pre order Watch dogs

Watch dogs is available to pre order on Steam in some country's, but not in the UK, Why not??? I want to give you my money Ubisoft, why won't you take my money!!! Its $60 on the US store, but everytime I click it,

 An error was encountered while processing your request:

This item is currently unavailable in your region

I wonder why this is? Is it still awaiting certification, are Ubisoft trying to strike a deal with some retailer for exclusive pre orders, Whatever the reason, I hope I can pre order it soon. 

What else am I looking forward to?

Daylight

http://store.steampowered.com/app/230840/?snr=1_4_4__105_2

this is out at the end of the month. It was one of the first announced Unreal 4 Engine games so should show off some of the new features of  UE4 I will prob pre order this soon.


Evolve:
http://store.steampowered.com/app/273350/

this looks really good!