Order placed online for black friday specials before 01:00 am on Friday morning and now telling me out of stock

I placed an order on Friday morning before 1am for some black friday promotions. I ordered 2 x Ariels and 2 x Douwe Egbertalss. I especially waited until that time to get stock. 1am in the morning!!!!!I went to a Pick n pay branch on Saturday and their shelves were loaded with the coffee that was on special, but I didn't purchase it due to the fact that I ordered online and was expecting delivery on Monday. I received my order at 11:30 today with no coffee and a description "Not supp****". (Why???????) I then called the online call centre were I spent about R30 airtime and was told "sorry, but we are out of stock and that we didn't charge for the coffee" I don't care if you didn't charge me, It's the freaken principal. I could've bought it in store on Saterday at R65 a bottle if your online site informed me that there wasn't any stock of the coffee left!!!!!!!!!!How are you already out of stock when I placed my order by 1 am on Friday morning??????????? This is pathetic really. What kind of service is this that you offer your clients??????? I want an explanation of this. Do you expect me to now pay the full price after I expected my delivery today and I wasn't even informed that there wasn't any stock when I initially purchased online?????!!!!!! I want answers!!!!!!