Frustrated and disapointed

I visited KFC in Eersteriver on Thursday evening to get food for my family to eat on the way to our weekend getaway, but I was sadly disappointed with the decision that I made. Upon arrival the place was already packed, however, I patiently waited for our order having been a manager for a couple of years in a customer service environment myself. I ordered a double crunch burger, 2x Streetwise two meals with an extra piece and 3 Snack burgers, however, instead when we stopped halfway to our destination I only received 2 Streetwise 2 meals (no extra piece), 3 Snack burgers and a normal crunch burger! The Crunch burger had a ridiculously small chicken fillet on which didn't even cover half the roll!!! I'm not a customer complains, however, when order something I expect to get just that, this incident ensured our family trip started out on a very unpleasant note. There has been a couple of instances at different branches where the person assisting me has gotten the order either wrong or even left an article out for which I paid, however after this I'm definitely not simply keeping quiet and accepting it.