Human error or deliberate chopping of orders at KFC

On Saturday 03 January I bought 15 pieces of chicken at KFC Diepkloof square,to my surprise when I reached home only 13 pieces were in a bucket. I am not inclined to check and verify order on spot simply because it's unhygienic to be fiddling a meal for family consumption.I expect my order to be as it is because I pay with my hard earned cash.Please raise the bar and give public the decency it deserves.