Not happy with order

Not happy with my order. We ordered Nandos (Columbine Square) through Mr D. There was no option of half hot and half lemon and herb. At the bottom of the order, we gave a description that we required half hot and half lemon & herb. We only got lemon and herb. We would have rather had hot instead. My husband and I never eat anything but the hot flavour and my kids do also eat hot at times. We refuse to eat what we don't want to eat, we need a refund if they can't exchange this order.