Poor customer service

I bought an 8 piece family meal at Chicken Licken the Reef in Germiston on the 4/11,2022 at approximately 17;50. via the drive thru. I asked the lady to make sure it is a 8 piece meal as it happened before that they gave me only 6 pieces and i never bothered to go back as i stay a distance and also considered that it is not worth my petrol. i was approximately 8 kilometers from the Reef when i asked my fiancé to pass me a piece. She noticed there is only 6 pieces of chicken. i went immediately back to the Reef. The lady at the counter just took the packet back and went to the back of the store with o explanation or apology for the incorrect order. a few minutes later the manager Tebogo came out. I explained the story and she said she is at the back so she cant watch the staff in front as to why they shorted me with the chicken. She offered to correct the order and i told her i don't want cold chips also. I also took her to task for not even offering an apology. she said she had to wait for me to calm down. She then went to the back and i had to wait again. She then came back a few minutes later and said she will correct it. i asked her to bring it to my car as i was tired of standing due to a medical condition. She brought the correct order to my car with the original cold chicken. i was disappointed and thanked her. Please train the entire staff as to how to deal with such and issue and not to return with cold chicken.