Makro online bad service

I Purchased a washing machine online KIC Front loader 7 kg on the 30th of May 2023, expected delivery was 3-5 days. on the 7th day I enquired with the contact center and I was assisted by a lady called Palesa , who advised that the don't have stock and they cannot give me ETA on that. I then requested for a refund which I was advised it will take up to 3 working days to reflect in my account, by the same consultant. To date I have not received my refund , I'm calling the contact center everyday still I am not being assisted because "they waiting for the finance department to approve the refund". I cannot get hold of their finance department. I am at the point where I don't know what to do anymore. Please advise.