Extremely poor service from online shopping

First experience of ordering online for delivery from Woolies. A shambles. During checkout, they ask you to select an option should they not have items you have ordered, one of which is "call me". They didn't - but they decided what I would like instead, as a 'fait accompli', without asking me. Errr....Woolies: it's my money and my taste, not yours! They also decided to invalidate one or two bulk-buy discounts, so effectively I ended up paying more for my shopping than I'd intended. That's really not on. Then....the shopping delivery turns up the following day. I had specifically asked them to notify me when they had a clearer idea roughly when (during a wide time window) they might arrive, but needless to say, they didn't bother. On inspecting the shopping after the driver had departed, turns out they omitted approx 2/3 of what I ordered, yet delivered two full bags of items that belong to another customer!! The driver returned an hour later with the missing bags of my shopping and I handed him the two bags not belonging to me. He had no idea what to do with them. We chatted a bit and it seems that the whole system is in chaos, it's not his fault. Woolies: you charge a premium price for what should be a premium service. Meanwhile, your board is paid squillions - maybe spend a bit more on training your staff and tweaking your systems. Please sort it out and also, this particular customer would like some proper customer service and a satisfactory resolution please. I would NOT recommend them based on this experience.