Right, apologies if this isn't for everyone but it works for me!!
Do this short South Park quiz and you'll get a 10% off code ( At least I did so guessing everyone will ? )http://store.ubi.com/uk/south-park-contest.html
Then, in your account go to this page and use 100 u coins for another 20 % off codehttps://club.ubisoft.com/en-GB/shop-discount
Works on any games codes can be used together...
Hopefully this deal is for everyone, not sure if everyone gets the 100 u coins automatically I just already had them somehow!