Wrong delivery order

McDonald's, Cape Rd (Gqeberha, RSA) I ordered a chocolate chip ****in, and got what seems to be a bran ****in. It tastes more like fruit cake - only, dry and bland. Since the mark-up of the food is so high on Mr D, you'd hope you get what you pay for. And it's not like you can just tell someone it's the wrong order and you get your order back. Really disappointed.