Makro come on! Do better!

Why did I think this was a good idea....well, to avoid crowds, to get the specials without the hassle of being in a crowded space. I placed my order last week, then had difficulty paying and when I called I was told that some items were more than likely out of stock and hence it not allowing me to pay. To be clear, none of my items were marked as being out of stock so I was forced to randomly take products products off my list until it allowed me to check out....I received one item yesterday after being told that everything would be delivered....then about 5 minutes ago I was emailed and provided with a list of items that were no longer in stock....these items formed part of a bulk deal so it part if it is being delivered I will not receive the discount....the whole point was getting it at a better price. Emails have been sent, calls have been made and yet no delivery and no update as to how this affects my bulk deals. Never ever will I put myself through so much stress ordering online with a company who has clearly bitten off way more than they can chew....my order is a mess, my discounts have not been app**** and I still have no delivery or the remaining order. I am hoping that someone will reach out to rectify this as it has caused way more anxiety than convenience.