Generally, any payment on FUNCTION12 is not applicable for a refund.
By your local consumer protection law, customers residing in the United Kingdom or European Nations can register for a refund if no work has been done on FUNCTION12(import, download, etc.) within 14 days from the payment. After 14 days or have used FUNCTION12 since the payment, a refund is unavailable.
Please check the Terms of Service for more.