No Stock...again...come on!

What is the point of ordering online when you are being told on the day of delivery, there are items out of stock?? Firstly when you place an order, the delivery window is between a week to 2 weeks. Secondly, it tells you which items are stocked out. Fine, you move on and place the items which is in stock on the day of order placement. Woolworths, you need to make provisions for the future delivery dates. Do not come tell me on the day of my delivery you don’t have stock when i placed my order a week or 2 ago when it showed you have stock. I am livid with my last order, it is my son’s birthday tomorrow and you’re telling me you don’t have stock of the cake i ordered almost 2 weeks ago?? It is not OK.