Game online delivering wrong product and refusing to replace it with correct one

Bought a monitor online. Delivered the wrong product a week later. Emailed Game online the 18th of January and followed up 4 times. Till now I have not received one single reply. I called their call centre and they asked me for photos as if I am lying. They promised that the replacement will be done in one or 2 days after they received the photos. Sent the photos to them the 19th of January and again not one reply. Do not do business with Game or massmart online again! Still stuck with the wrong product!