Yea, they don't have WRITTEN refund policy limitation, BUT they do monitor your NM account and in my case, they said I made too many returns (which I totally disagree, and hey, sometime you have to return stuff when a $2000 + bag is in not-so-perfect condition, or there's this one time when I asked the SA to stretch my
Gucci shoes a little bit and the left one ended up being 2 sizes bigger then the right one....), they discontinued my card and said they will never accept any returns from me. And plus my favorite handbag SA no longer works there. And I found that other SAs in my local NM are often not so knowlegeble about Chanel bags as the SAs in the boutique.
So now I only buy my chanel bags from the boutique (I found the sweetest SA there) and from Saks (the SAs aren't as sweet but they are also very knowlegeble about Chanel bags).