KFC Bad rewiew

The service i recieved at KFC secunda CBD on 22 APRIL 2018 was of the worst ever. I oreder a few things but what was the badest was i order a bacon and cheese sandwitch because the chicken mayo was out of stock but how is it possible for a chicken shop not to have chicken mayo And when i recieved my sandwitch it was tamato cheese and egg but if they dont have bacon and cheese why didn't she tell me?