Disgusting service

I'm very much disappointed by the Makro Online Service. I bought a universal adapter/plug over two weeks ago for my international trip and to date, I haven't received the item and there's no communication. I called them last week and they said the item will be delivered on Friday and yet again, the item was not delivered and there was no communication. Yesterday I called them again to enquire about the delivery and they told me that the order was cancelled due to the shortage of stock. Mind you, this is 2 days before my trip. Why didn't you let me know about this issue last week because I could've bought it on Takealot??? So what should happen now?????