below standard servoce

the KFC Tuesday special is not as advertised , and each time we visit the KFC its either not offered in the shop or have to be bought with extra items - I went to KFC 24/09/2019 ,and was advised I need to get the rolls as well which totaled to - R 89.00 . can that KFC put a banner stating all adverti*****t does not apply to this KFC,