Today I suddenly find Apple will charge you the App bundle fee again, no matter whether you have bought the individual app or not. The actual story is this: I bought that app bundle in Japanese Store. And then I am at Australian Store. Since I have no way to switch back to Japanese Store for now, I want to buy that bundle again, so that I can update them in Australian Store. After clicking "buy", iTunes shows a dialog saying my library may contain duplicate items. I ignore and click "buy". Then I suddenly find my store credit is deducted. Is this intentional?