Cold faced cashier at KFC cost me my Joy of KFC food

Today 27 June at 17:13 i went to KFC Kroonstad Reitz str..I was helped by some cashier I dnt knw whether it is her name or what but it is written on till slip I still have it now.It is written (5 Nkadimeng.).I believe it is her name though. I am a regular at KFC and this lady is one of those who normally helps me .Today I went and she assisted.I told her I would like Chicken Box with Side Breast and 2 wings..because i Love kinda dry parts.and I told her i also would like to have a Bunny 500ml drink of Fanta..She looked at me with disinterested face.and i repeated my order..and asked her in the meantime do they have tht fanta bunny..she looked at me with that straight face still and cut me off saying..we have coke.sprite and fanta..and knowing fanta comes in diffrent flavours I asked her Again if they do have Fanta orange..Again she cut me off saying.We have a drink.still with cold face..and then just because i know she is normally not this cold I asked her..R u alright mam..you seem like you are angry..wht is wrong..? She said Noh..I am ok it's just that I am tired..and after saying that she dismissed me fo another customer..Ok fine i went to wait for my order. Once I received it..I left I did not think of chekking it.because I was late for home and also I did not eat the whole day.Later around past 6 while at home in the township I opened my meal to eat...and Boom There is a Side Breast I needed, a Thigh and a drum Stick ..2 most parts I Never like to eat even at home..reason being I dnt like meat that has a bit of water in it or kinda soft in that way..I had to throw them away, that Thigh and Drumstick if my daughter was around I would have given it to her..I am soooo Hurt by that Service. I have never been so hurt over food...I almost cried simply because I repeated it to her and I was worried about her attitude Bt I failed to verify those pieces because I trust them to do a good job.