Absolutely no customer service!!!

I ordered and paid for a product online on Makros website, I was then provided with an order number... delivery date etc. 2 days later I recieved an email to advise my order has been cancelled due to no stock, and a refund will be processed, however the item I purchased is still available online to order? I advised makro that I'll await for stock of the item since it is still avaliable online or makro can provide me with a similar replacement item. Since the 27th of November I have been emailing makro customer support, calling every 2 or 3 days, with absolutely no success, every agent I speak to advises they will escalate the matter, I have had not one response to the numerous emails I have sent, the customer service is absolutely appalling! Makro is literally ignoring its customers, or the staff is not doing their jobs. I am beyond disappointed in the lack of customer service from Makro, providing no response at all. Once this has been resolved I doubt I will ever shop at this retailer again!!!