Thought I'd share this with people
I recently requested a brochure be sent for European Center Parcs and when it came it had a letter with a personal code for a 50 Euro discount on all bookings made before 18 February. This discount was on top of the earlybird and young families/senior discounts.
I'd have posted the code to see if it works for everyone but I've thrown the letter away. If you're planning to book it might be worth requesting a brochure and then waiting for your code.
Edit:Just double checked and it is only until the 18th not the 28th as I first entered so you'll have to be quick!