I received a 100ml bottle of Prada Luna Rossa as a gift. It was purchased from London Heathrow Duty Free so no qualms as to its authenticity and it was wrapped in cellophane so no way that it could have been used before.
There's around a 0.5cm gap at the top. Now I've been many through loads of different perfume bottles over the years and they have always been full right to the brim at the top.
So I'm hoping if someone could confirm whether this is just how they are designed or perfume is missing from my bottle.