If you find that the cost of an in-app purchase is higher than you expected, please follow these steps to understand and potentially resolve the issue:

1. Check the Advertised Price: Remember that all in-app purchase prices we display are in USD.

2. Understand Currency Conversion:

    - Your App Store converts the USD price into your national currency.

    - Be aware that App Stores use their currency conversion rates, which may not match the official market rates.

3. Identify Additional Charges:

    - Recognize that your payment provider might add taxes and extra fees depending on your region's legal requirements.

    - Apple, Google Play, and Facebook may include additional fees and/or taxes for using their payment platforms.

4. Research Tax Policies:

    - For Apple's tax policy details, visit [Apple's Payments Help](https://www.apple.com/shop/help/payments).

    - For Google Play's tax policy, consult [Google Play Help](https://support.google.com/googleplay/answer/2850368?hl=en).

    - For Facebook's approach to tax, refer to [Facebook Help](https://www.facebook.com/help/248471068848455/?helpref=hc_fnav).

5. For iOS Users (Apple App Store):

    - Apple's App Store may consolidate several purchases into a single bill.

    - If your bill has an issue, contact App Store support directly through [Apple Contact](https://www.apple.com/contact/).

6. Seek Support When Necessary:

    - Contact your App Store's customer support if you have questions or need further clarification about specific charges.

    - They'll provide transaction details and help you understand any charge discrepancies.

7. Review Purchase History:

    - Regularly check your in-app purchase history.

    - Confirm that all listed charges correlate with your in-app activities.

Following these instructions will inform you more about your in-app purchases and the potential reasons for higher charges. Always ensure that any in-app transactions align with your expectations and budget.