Online Return Request

I bought a heater from @Makro online on the 22 May and it was delivered on the 29 May only to find that the heater that was delivered is incorrect, I called them and was requested to log a return request which I did, my request was rejected due to the address being incorrect which is the same address I used when buying and they were able to deliver, they called I missed the call, called back only to be told they rejected the request, I was asked to log another request which I did and was also given Courier guys contact details to call them to rectify my address which also did last week. This morning I went to check online the status of my return request only to find it was rejected again due to my address being incorrect, i called again and spoke to Christal the consultant that took my call, I asked Christal how can it be rejected again due to my address being incorrect when I called and it was rectified, she said she can see on that system that I did rectify it and asked me to hold so that she can go speak with her manager regarding this, she came back apologized and said they will reinstate the request they will come today to pick up the heater, I followed up 3 times today and I was told it will be picked up today. It's currently 18:45 and the heater is not yet fetched by Makro and the Courier guy.