No replacement or refund on defective goods

On 6 May 2015 I ordered a foldable desk shade lamp from Groupon, whose service provider was Magic In The Box. Upon receiving the parcel on 13 May 2015, the metal component for *****ing on a light bulb had already separated from the crumbled cement support. In short, the bulb holder was not in a working condition. I then requested a replacement. I received a confirmation that the shop in Crown Mines (Johannesburg) received the parcel of the lamp that I returned. I was assured that it will be repaired or replaced. I followed up several times afterward and nobody bothered replying to my emails.<br> <br> I am no longer interested in the replacement, I want my refund.