Hello, Menichetti,
Thank you for reaching out to us with your query regarding the additional information box on your WooCommerce checkout page.
We kindly suggest that you reach out directly to the WooCommerce plugin support team for assistance with this matter. You can connect with them via the following link: https://wordpress.org/support/plugin/woocommerce/
If you have any other questions or concerns, please do not hesitate to reach out to us. Our support team is always available to assist you.
Thank you for your cooperation.
Best Regards,
8Theme’s Team