KFC - Helpless

I went to KFC Selcourt. I was buying 6 pics earlier during the day i was served with only small pcs i only noticed at home all small.
Later same day i went there to buy all in one drive through i saw R150 when i was paying they say they say it was R 155 i then protested the price the manager Bongane said sorry there is nothing he can do they forgot to remove the promo.I then told him the other complain of small pcs ealier he responded by saying he was not around he cant entertain that i will never set a foot the because of your incompetent managers heartbroken and dismay