Harry Potter Deathly Hallows 1 and 2 3D boxset incorrect

[levcore]

So i went in to HMV today and bought this:


Good price for both movies in 3D i thought. I checked the back to make sure all the extras from the normal release were there and was pleasantly surprised to find that it was a 6 disc set containing what seemed to be all the features:


I got home and took the cases out and they seemed a bit light, Hmmmm i thought:


Oh look, the back of the cases doesnt seem to list any extras, maybe that's just the way it's been designed i thought:


So i opened them up and lo and behold!:


Just two measly discs! Each containing only the 3D version of the movie. So the set is missing 4 discs and all the bonus content. WTF?! What a weird mistake for the manufacturer to make! I'm going back tomorrow to return this and at the same time ask what the hell, as it's really odd. Just wanted to warn anyone in case they were planning on picking this up. Not sure if i just got a duff copy or if this is an overall error, but the back of the case clearly lists 6 discs and a load of bonus content which isnt there!