Gross incompetence and no communication

I ordered a generator online on the 20th of April. Before I placed the order I checked with various stores if there was stock available and the store in the Vaal confirmed that they had stock. The reason I did the order online was that it is quite far to drive and I thought it would be best to have it delivered. The cost of this item is R5300 which I had to pay. On the 23rd I contacted the call center and the actual branch in the Vaal and asked them both to ensure that my order was auctioned I was assured that it was and I would receive communication. The delivery date was the 2nd of May I still contemplated driving to collect but I did not want to complicate the process and risk loosing the item. On the 2nd of May I had not received any communication I called the call center and was told my order was in process and they could let me know. At this point I insisted on feedback since I’d been waiting since the 20th. I was told they were working on it and would come back. On the 3rd I again called in and was told the same story at which point I insisted on speaking to a manager?? doctor called back only to tell me there was no stock. I am fuming because had my order been filled when first placed this would not be the situation and it’s only due to gross incompetence that there is now no stock. Doctor assured me that he would find a solution and get back to me at this point I am still waiting. 1. There has been no communication from makro I have needed to call in to find out what’s going on. 2. They have had my payment since the 20th three weeks now. 3. I know for a fact that there was stock at the time of my order. ???? I would like to know what the solution from makro side is I want my generator!!!!