What to do if the purchased theme or font can't be installed or used?

If the purchased theme or font can't be installed or used, please refer to the following information:
1. Purchased themes or fonts cannot be returned or refunded, so please ensure your purchase decision before completing the transaction.
2. If you are unable to download or use the item after purchase, send an email within 72 hours of placing the order to theme-payment@xiaomi.com
Make sure to include relevant order details, such as order number and account information, to help the support team process your request efficiently.
3. Ensure that you tap the purchase button within the Themes App. Purchases made through other websites or third-party links are not recognized as official and can not be supported for download or usage.