International buyer wants a refund which is more than selling price

[village_life]

I recently sold an item to an international buyer for £114.50, including postage. I used EBay's Global Shipping option so the postage cost from my end was only to the shipping hub in the UK.

The seller has stated the item is faulty, which I wasn't aware of, and has opened a returns request and he wants a refund of £152.67, which is £38.17 more than I received in the sale. 
I have messaged the buyer to ask why the difference but he hasn't yet responded. I am assuming it is because of import charges or some other charge imposed by Ebay's Global Shipping? 
I have no use for the item and have told him he can keep it. I have no problem refunding what I received for the sale  but am I duty bound to refund the extra £38.17 that he is claiming?

[redwick1 · Accepted solution]

If they have opened a dispute then you have to make sure ebay know it was on GSP.

YOu only pay back the original payment which was with the postage to the UK hub

SEe the link to the information

https://www.ebay.co.uk/help/selling/selling-postage/gsp-sellers?id=4646#section2

[village_life · Accepted solution]

Thanks. They havn't opened a dispute as such, just started the refund procedure. The buyer has contacted me and is willing to accept the original selling price (less the tarrifs, import charges etc. he had to pay on top).