Dear Pacharapon,
Welcome to iTunes Store Customer Support. My name is Jayanth.
I understand that the you have charged monthly for the App "Angry Birds Star Wars II". I know how eager you are to get the refund. I am glad to assist you.
Pacharapon, your request for a refund for "Angry Birds Star Wars II" was carefully considered; however, we are unable to provide a refund in this instance.
You can review the iTunes Store Terms of Sale for more information:
http://www.apple.com/legal/itunes/ww