We cannot refund you directly, you'll have to contact Apple.
- Contact iTunes support and explain what happened: http://www.apple.com/support/itunes/contact/
- Click on Contact iTunes Store Support on the right-hand side of the page
- Then on Purchases, Billing & Redemption.
Please know that our apps cannot bypass your security/password requirements and that it may be necessary to update your password if unauthorized purchases are being made. If you have further concerns or questions about your password security follow the link: https://support.apple.com/en-us/HT204396