Snatcher has nit refunded me for poor quality item

I ordered a dress online from Snatcher store. Online the dress looked so beautiful. When I received the dress the stitches are all coming offf and it's of such poor quality. Nothing like the advert. The size is also incorrect. I requested that snatcher collect the item and my money be refunded. I sent a photo of the dress with the stitches out. Snatcher had not refunded me. Please be careful. Snatchers quality is very poor. False advertising and they don't refund.