It would be useful to see what the customer's country and address information is for eBay GSP orders. Can these be included as an order extended property please?
I know they appear as the following fields in the ebay_transactions table:
Alternatively, can the country code be taken from the delivery address as the 2 letter country code that appears at the end of the GSP reference number on the address:
AU = Australia
Apologies, please find the image attached.