Not impressed with you at all

There was an online special for 1.5 liter X6 milk for R40 (purchased 5 packs) - I purchased this for delivery on Monday 1 August 2022. This morning I get a call from Hadiyo from Woolworths telling me the milk was out of stock?? when I ask why wasn't my order declined on Monday when I made the order, she rudely responded that they do/call to advise that the milk is sold out as the order comes.. 1. I am not accepting this as I believe if you are out of stock regardless of when the order is for the order should not have gone through. 2. You took my money (twice) knowing very well that the milk is out of stock. 3. Your staff has appalling attitude. I am not accepting the outcome of milk being out of stock, I will very much like what i paid for you need to honor that order.