Cheated by Woolworths Mall of Africa!

Sometime in July 2018 I bought an expensive perfume Bulgari Man In Black, 100ml. Because I have a range of perfumes I did not use until December 2018. I used it only about 6 or 8 times and to my surprise it is finished! The bottle is opaque so one cannot see perfume when buying. Further, the bottle is heavy on its own! The underside if the bottle is written 11H22G1 and it was an EAU de PARFUM. Now looking back at the events of the purchase, I now become very suspicious. First, there was nothing else available and the employee had to go for sometime only to bring the ónly one left'. It was sealed yes but the corner of the outer plastic wasn't as tight. I didn't think much of it at the time because I trusted this store. I asked for the little testers/toilet bag etc that I know come with this kind of perfume and I was told its all finished. Well, I pad and went away, only to notice n Dec that I have been short changed. If I still had the receipt I would have gone back! :(. But I feel very powerless and angry at such dishonest by such a huge retailer!