yeah man, they'll exchange your item if it's defective but if you want to return it simply because u're not happy with it, they'll charge you like a 20% restocking fee or something like that... or was it 5% i can't remember.
look at the bottom of your receipt, 3rd one down the list :
"No refund or exchange without prior approval. All merchandise returns subject to a minimum of 20% restocking charge"
it's kinda dumb, i think. but i'm sure they'll let you return it if you make a scene in front of other customers... that being said, I probably won't shop there too often simply because of this dumb no-return policy.
but I'm happy with the lens so that's fine.