Unacceptable response from makro online

I purchase from makro online in October, I was very impressed by the turn around. I got exactly what I ordered . However I realized the one item that was gate tracks would not work. I did open the outer package of the item but not the item itself and duly logged a return. They promptly picked up. However I have yet to get a full refund. I paid R99 for each piece of track. I ordered 4. I received 1 refund of R99 but not the full amount. I made several calls to customer services as well as emails but no change. This has been dragging on for the past two months.