I'm requesting for a refund
my child bought currency on a game and bought a game called mincraft i want a refund now
Question marked as
This is primarily a user-to-user support forum; other Apple users like you. We cannot give refunds but the following may help: Request a refund for apps or content that you bought from Apple - Apple Support
Also see the excerpt below from that link:
If you or a family member bought an item by mistake, set up Screen Time to prevent unintentional purchases in the future. You can require a password for purchases, prevent some types of purchases, or disable purchasing completely. Set up Screen Time.