Takealot - dishonest and false advertising on promotions

Placed an order and paid in full yesterday(21 Nov at 08:05am), delivery for 23 Nov(order confirmation email received). Checked the status of my order in the app at about 20:00pm,noticed that my delivery date was now moved to 6th Dec. Recieved an email on the 22 Nov, stating that my order has been cancelled. Emailed the consultant at takealot (Luke A) was advised that there is no stock and the price has now changed(this is after i paid for the item a day before) and they cannot replace the item for me because of this. Takealot still reflects that the item can be ordered however ships in 5-7 work days. But instead they cancel customers orders who had already paid at a lower price and expect you to pay at the new price ie. 20% more. This is day light *******. I have already paid and the item was instock when i paid. Now they want me to reorder at the new price.