Answer for the missing items

So this happend to me too but I thought hey didnt give me the mega dragonite stone.

So you go to a pokemon then i think press x or y when you are on top of it to go to held items.

It looks like it didnt give you the items but you are acualy in the "recent" catagory.

If you didnt use it recently (like when you just got it) then you have to click those tabs on top to switch to a diferen catagory.

So i would have to keep going though them until i hit the mega stone catagory.

there is like a h one a defence one like all that stuff.