Welcome to iTunes Store Customer Support. My name is Raghava.
I understand that you did not receive your purchased Apps and you would like to get the charges reversed. I know how it feels when you do not receive purchase you paid for. Please do not worry I will surely assist you.
Narathorn, I reviewed the order in question and it looks like the purchase was made within an app. This is called an "In-App Purchase". For information on this type of purchase, read: