Makro aftersales service a disaster

Makro has the worst and most pathetic aftersales service. I purchased goods on Makro online through Vodapay on the 18th of January. They delivered only partial of the goods with no communication whatsoever. I have since been contacting them regarding my refund and to this day I have not received it. I went to the Makro in Bloemfontein and they told me that they cannot assist me because I purchased online though they have an online purchases office. I have called more than 4 times and they keep promising to get back to me but nobody ever does. Their online department told me they don’t have direct line with their finance department and only rely on email communication but nothing has been done