Frustrated with poor service

I am extremely frustrated with Hirsch at the moment. I purchased an item on 13 November. When I browsed online, the item showed as in stock, so I proceeded with the purchase. Because I had a store credit, I first had to contact Hirsch so someone could take me through a very frustrating and unnecessarily complicated process just to use that credit. I informed the person exactly which item I wanted. Both my husband and I confirmed online that it was in stock. After arranging everything with the person, I paid and immediately afterwards, the item suddenly showed as out of stock and only available again in 7 to 10 days. When I questioned this, the person sent me a screenshot showing the item as unavailable, which was surprising and frustrating. Since I had already paid, I decided to wait. According to the email, the item arrived on 24 November, but I was told again that delivery would take another 7 to 10 days. Then, on 25 November at 7am, I received a call from the courier asking for my address. The lady told me they “just needed to find out where I stay so they can decide whether to load the item or not.” Clearly, the item was just lying somewhere and not prioritized for delivery. Three days later, when I enquired again, I was told that since the courier has 7 to 10 days to deliver, they will deliver on day 10 again showing that the customer is not a priority. The best is I paid R250 for the delivery… The courier delivered the parcel today, 3 December, without notifying me. My husband received it. When I got home an hour later, I saw the item was incorrect. I checked it against my order, and it is definitely not the item I purchased. I called the person who assisted me, but the line was so poor that I could barely hear her. From what I could gather, she said I must send a photo and then an investigation will begin. At this stage, I am not interested in any investigation. I want the incorrect item collected and a full refund issued back into my bank account immediately. My time has been wasted. I could have had this item by 14 November if I had simply ordered from Takealot. I also see that the item is once again out of stock on your website, which means more delays of 3 to 4 weeks which I am absolutely not willing to tolerate. I can get this product much quicker from another store. I do not want another store credit. This entire process has been a hassle from start to finish.