Processing Online Order for Out of Stock Items

So disappointing that a brand as big as Makro would let you finish an online order while they are out of stock then send you an SMS and email late the following day that the order has been canceled.

The worst part is, the item is still available on their website and it's business as usual - https://www.makro.co.za/food/snacks-biscuits-sweets/biscuits-crackers-rusks/biscuits/fancy-sweet-biscuits/choice-assotered-bakers-assorted-2000-g-/p/CKBH77BGDHTSNCYU