Small bug fix on woocommerce checkout page

Woocommerce checkout page shows Additional field for customer input.
This Additional info field shows for select product slugs as defined in woo - settings - Extras Checkout fields
This is set in child-theme/woocommerce/order/order-details-customer.php file

I have set two product in woo settings Extra Checkout Settings but checkout page Additional fields only showing for one product (virtual-santa-shoebox-generic). It is not showing for second product: financial-donation

Additional fields:
require_18a_certificate (checkbox)
donor_type (dropdown)

FIX required:
- fix existing system so that checkout additional fields show for product slug: 'financial-donation'
- Once done and approved then apply fix to existing cloned site OR provide instructions for me to apply

- Fix should work with existing woo - settings
- No upfront payment - milestone ok
- Must be able to start immediately
- Pls test frontend to avoid online errors