I never said I want to buy a **** perfume

I bought a DKNY women perfume from my perfume shop.I requested a refund after the have acknowledged selling ****s perfumes but they refuse to process a refund because the box is opened.if I didn't open the box how was I going to know it's **** like the lady mentioned they sell **** perfumes.The website said they are selling authentic perfume who in the right would buy a **** perfume for R1600.00?if they could have stated from the onset then I would have made a sober solid decision whether I continue buying or not May I kindly be refunded and I will send back the **** perfume