Over the years Aldi and Lidl have sold some excellent clones with Suddenly by Madam Glamour springing to the forefront at £3.99 the bottle. I have no idea if it smells exactly the same as Chanel Coco Mademoiselle at £100 a bottle but the reviewers and monthly sales seem to back their claim up and it does smell nice. Loads of excellent copies doing the rounds and giving the perfume houses a run for their money.
Here are a few suggestions for Creed Aventis from Cologne Critic and the Al Harramain looks a good call for £32 a bottle. Cologne critic say and I quote
" For the price and its authenticity to the original, this is our standout winner, and if we were to rate this out of ten in terms of authenticity to the original, it would score a solid 9"
colognecritic.com
Twenty euros a bottle would be better though and will keep an eye open for it.