finding field names

Hi

I’m using a plug called WooCommerce Donation Or Tip On Cart And Checkout
https://kreativewebstudio.com/product/woocommerce-donation-or-tip-on-cart-and-checkout/
to raise some donations for a related Charity

I want to include any donations in the csv export

I have several additional fields that I have added using Checkout Field Editor for WooCommerce which are all exporting fine

however I can’t seem to find what the name of the field for the donation is

as it’s an add on and not actually a product I need some help finding out what field name I need to capture.

any ideas?

The page I need help with: [log in to see the link]