Shocking Service - Never again!

Order placed on 02/07 with delivery foreseen on 03/07 between 11am and 1pm. No delivery at 1pm so called the number on the website. After being on hold for 20 minutes because "all the consultants were busy", spoke to a supervisor who after being explain the issue informed us that they had no available drivers and that the order would be delivered between 9 and 10 am on 04/07. The website does say 2 hour delivery but hey, not much we can do. Saturday comes, still no delivery. Called again, this time spoke to the manager who informs me that there seems to be an issue with the payment processing, so in order to get things moving, i redo the payment for the same order. After a couple of hours he confirms that the payment is now received TWICE and that the order will be delivered before 7pm on the same day. A refund would be processed for the second payment. And you guessed it, no delivery on Saturday as no drivers available but we got the promise that we would be getting the delivery on Sunday first thing. Roll on Sunday - around midday, no delivery received as yet. Called again, and this time spoke to a supervisor again. She was very apologetic and apologized for the inconvenience and then tells us once again that the payment was not processed correctly so no order is place. What have the 2 other people been talking about then.... oh, seems that the 2 people i spoke to on Friday and Saturday are not known to this supervisor so she would need to investigate. Miraculously, the order is processed all a sudden late Sunday afternoon with delivery date now 07/07. 5 days after the original order was placed and paid for. No news from the supervisor anymore on Sunday so obviously we called today early and now they are able to deliver the order. Receive the order and things are missing, items have been replaced with other non comparible items and the variance of price has now been placed in the wallet, not that we will ever use them again. Till now, no news about refund, no news about the 2 colleagues that blatantly **** and no news about how one cart is going to make this horrendeous experience any better. I have asked for a refund of the second payment and asked them to reimburse me for the full shopping list. Lets see what happens.