Yuen Long Plaza, KFC always likes that. I have had bad experience of 3 times while taking away the order. The sells forgot to give me something. When you went back to home and ate, it always miss part of your order. Luckly, I called back and KFC would send the missing items back to your home. Now, when I order the take away food, I have to take them out from the plastic bag and check it carefully before going out.
My conclusion is KFC, McDonald, etc, they like to employ part time junior staff. Most of them are no heart to work (some junior are good with smile but not much). Therefore, you can't believe them. Actually, the elder staff are much better.