False advertising

I went to Pick 'n Pay Barberton yesterday afternoon. They advertise their ready made pizzas as "Buy any 2 save R25" (Excluding Pizza Bases and Large Margherita). I chose a pepperoni, chilli chicken and 2 migthy meaty pizzas and some other groceries. Got to the till and apparently the "migthy meaty" is not part of the "save R25" discount for it's new. This is totally unacceptable and false advertising, clearly they don't know what the word "ANY" means. I requested to speak to the manager on duty and even then I were refused my discount. I don't care about the R25 but it really ****es me off if retailers advertise discounts and then rob customers of their discounts, it's a matter of principle. I were furious and didn't even want the other groceries anymore and just left. I took a picture of the advert and will lay a complaint at the consumer commission this week.