How big is the discount for a member of the Iron Maiden Fan Club on their website?

For the full membership, what size discount do you get?
I want to buy my parents the big Eddie candle thing, but I can't
really pay almost £50, so I'm going to see how much the discount is.
I can always get them something smaller.
And don't worry about all the fees and stuff, I know about that, I'm
going to get my brother to order it, as he's a full member :)

Thank you!