Pick 'n Pay online shopping is a disaster

I ordered liquor via Pick 'n Pay online from the Gifts Holiday Tipple promotion. I was advised after processing my credit card payment that I could expect delivery on Sat between 10am-11am. We waited forever at home,even got late for a birthday party my son was invited to. I then called the customer services who advised me that Mr Delivery said they were on their way. I then waited further only to be told that the driver delivered it,I was very upset and demanded they call the driver to find out whom he delivered to? I was then advised my order had not even left the store. I will receive a phone call from the store,I never received that phone call. I followed up this morning to now be told there wasn't any stock so not sure where the other stories fit in. Its extremely annoying to order,pay and expect something then find out there was no stock and nobody informs you of this so you waste your time waiting at home and miss your plans for the day. I would appreciate it Pick n Pay makes the effort to get the item that I ordered to me asap. I will not wait around expecting them to call me or have the sense to dispatch my order when they do receive stock because I am afraid they wont.