Old sewing foot sold at new price

I bought a supposed to be new button hole foot for over R300 last month. When I got home and took it out of little packet the lady put it in the one rubber was loose and at close look I saw that it definitely wasnt a new ons. I phoned the lady at Elna shop in Somerset west and she promised she will get a new one and send it via pep. We'll 2 months later and still no feedback