Inventory issues and bad business!!!

I placed an order on 1 Nov. It was supposed to be ready for collection by 8 Nov. On 8 Nov there was no status update on the order, so I contacted Superbalist support, to which they told me that the item I ordered is not available and therefore has been cancelled and that I’ll be refunded in 3-5 business days. These inventory excuses can’t continue. Don’t advertise something as in stock, take my money, and then a week later let me that the item isn’t available, and then expect me to wait 3-5 days for the money to return! Doing business in that way is bizarre!!! Will be posting this to social media. You won’t be retaining customers this way. The item is R1899. It’s not okay to have the item yet you have my money and I must wait for it. It’s total BS!