A. If you wish to request a refund, go to the App Store, find your purchase history, and select the Katsu + app. Tap on 'Report a Problem' and follow the prompts to request a refund. Be clear about your reasons for the refund request.
B. If you are unable to get a refund through the App Store, consider disputing the charge with your bank or credit card provider. Provide them with details about the app and your reasons for disputing the charge.