Due to Apple's privacy features , we do not have access to the tools held by Apple to process refunds. As such, we redirect clients with iOS purchase issues to appeal to Apple.
If you should follow the link to report a problem with Apple, and provide a description of the issue, they should be able to help you out. Reporting the issue right away to Apple should help your case.
You can locate instructions on how to report an issue with your purchase here: Apple - Report a Problem