False advertising

The Krispy King Tourism Centre in Bloemfontein has an in-store monitor advertising a grilled family Fiesta meal which includes a Full Grilled Chicken, Large Chips and 4 Buns with a 2ltr Coke, but when you you buy they tell you that it comes with a Fiesta, and for a customer to get a Coke on the advert you have to pay an additional R20.

This is false advertising at it's best, and what's worse is that other branches do not charge additional R20.