Following complaints of kids accidentally making in-app purchases on iTunes without their parents’ consent, Apple is giving users a chance to refund those purchases. Users will need the order ID number in the receipt sent to your email by Apple. Look for emails from do_not-reply@itunes.com with “In-App” Purchases indicated in the Type field. Or you can browse through your iTunes Store purchase history. Afterwards, head to the Apple support page and select email support option. Indicate the order ID and inform Apple you would like to “Refund for In-App Purchases made by a minor.” This option will only be available until April 15, 2015.
Source: Lifehacker