All listing fees are non refundable and payable sale or no sale.
You can compare it to listing your car in your local paper if it doesn't sell the paper would not refund you your advertising fee.
Good luck with your sale, hut should it not sell again you might wish to take a look at listing it in a Classified ad format slightly more expensive, but once it sells, there's nothing else to pay.
Here's all you need to know about Selling with classified ads: https://www.ebay.co.uk/help/selling/listings/listing-tips/selling-classified-ads?id=4167&st=12&pos=1...
@woodabf9