False adverts

I went to Kfc Phalaborwa 3 weeks ago to buy the Tuesday after I saw it on Tv and also saw it on tv only to get there and get told that there is no special which didn't make sense cause I saw the advert. I wrote a complaint on their website and they didn't bother responding they don't care about their customers I had to buy something I didn't plan on buying after I wasted my petrol driving there.