Poor customer service for online purchases

I have placed an online order with Woolworths on the 20th of July 2020 and delivery scheduled for the 29th of July 2020. To my disappointment, I received a call today (29 July 2020)from a guy called Sipho who told me that the items that I have ordered are out of stock because they only do their online processing on the date of delivery. I'm very disappointed because I only get informed on the date of delivery that I will not be getting my order but a refund. Woolworths should learn a thing or two about online processing from the likes of Dischem.