Cancels ordered product. Then lists same item at higher price.

I ordered an paid for a product. Takealot then cancelled the order with the reason given as: 'We're sorry to let you know that we no longer have stock of the below item(s) in your order. We were unable to source the item(s) from our suppliers'. After visiting the website, it turned it that the item is available for sale, but now at a higher price. That's not acceptable business practice.