Incorrect Pricing

I logged onto the takealot app this morning and a set of Royalty Line pots was advertised as R399. I bagged it and paid for it by credit card. Now i received an email to state that they are cancelling the purchase as the price was incorrect. This is unacceptable..... the price you see should be the price you pay! I'm deleting the app and never spending my hard earned money with them again