Horrible service from Makro when they deliver the wrong product

I have used Makro online sales, and purchased a product, which was marked down. The incorrect product (inferior) was delivered to me. I logged a return immediately, and a collection 3 days later was accpeted. It is now 14 days later, still no response. I made 3 phone calls to the customer help line by now, every time they tell me they will escalate. I have gone to the MassMart customer care department, there I had promises that it will be resolved, that has now been 7 days. Try their online chatbot, there rspone time is 4 1/2 hours before you et an answer. Makro's online sales is horrible. I have used then ew competitor recently, they managed to deliver the correct product, in record time of lees than 12 hours. I will be taking this the CPA commissioner.