Refund not processed, and non-existent customer service

I have been trying to return blinds and request a refund from the online department since November last year. When the blinds arrived, I realized they were the wrong size. I called the online department, who told me I could exchange them at any store. I went to the Strubensvalley store, and was sent from pillar to post, as no one in the information booth, online department or returns section knew where I could go. 3 hours later I was finally assisted, and was told that I couldn’t return or exchange the blinds at the store, as they were purchased online. The ladies behind the counter called the online department, who said that they would send someone to collect the blinds. After countless emails to the “customer service” email address, the blinds were finally collected TWO WEEKS AGO (18th April 2019). It took FIVE MONTHS for these blinds to be collected!!!! Since then, I have not received any form of communication from Makro about the status of my return - no tracking number from Dawn Wing (who collected the blinds), no email confirmation stating that they had received the blinds, no mention of when I will receive my R3000 back - nothing. My emails go unanswered (as usual), and I refuse to call their call center, because no one who works there has a clue about what is going on, and all they do is make false promises and lie. All I wanted to do was exchange my blinds for a bigger size. Almost 6 months later, and I am now sitting with no blinds and I haven’t received my money back. Absolutely shocking “service”