Purchases with parent approval
If I am the parent and have funds on my itunes account, why is my credit card being charged when I approve of a purchase for a kid? I also have Google Play credits and when a family member purchase an app it deducts it from my Google Play balance before charging my CC. I want to know how if there is a way to have it deducted from the itunes credit first before charging my CC.
iPhone 7, iOS 13