Apple store purchase
How I can add a password in any purchase by my card to monitor my kids
iPad Pro 12.9-inch, 3rd Gen, Wi-Fi, Cell
Question marked as
One option described in Request a refund for apps or content that you bought from Apple - Apple Support
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.