Disgusting Service

Hi there. I placed my order on the 28th of November which showed the item being in stock and my delivery will take place within 5-7 working days. With my nieces birthday on the 10th of December, it was promised to be delivered on the day. Today, being the 9th of December I receive an email stating the item is out of stock and my order has been cancelled. Not only did I end up losing out on a R250 voucher I used for the product but I’m now left stranded and giftless. Imagine the look on this 5 year old, how do I explain to her about the companies disgusting service. Why advertise something that you don’t have in stock and why inform the client 10 days after the order had been placed. I’ve been a loyal customer but this inconvenience has turned the tables on them. Really disappointing!!!