New special coupon at GMG gives higher discount for EU/UK residents (25% vs the 20% in NA). This makes the pre-order only £22.50 in the UK and 37.50€ in the EU.
To get this deal you'll need to have a GMG account and be logged in to see the exclusive deal. (Screenshot below) Sign up is free and and easy. If you don't have an account, you can get the deal by:
This is also a SteamPlay key so it'll activate the Season Pass no matter the platform you have (PC, Mac, or Linux).