I don't know if the seller or ebay pays for the import charges. Hopefully ebay does, since I think they charge you more than your country would actually collect. You can continue to add to your claim so if you haven't already, upload the picture of the stain and mention that the listing says there were no defects. Ebay generally considers anything preowned to potentially have stains, so you need to stress that the seller's description said it was in excellent condition and the stain wasn't mentioned or shown.
Thanks for the tips! I'm going to go add to the request. I can't thank you enough whateve!!!