Any eBay final value fees, should be credited back to your eBay account after an order has been cancelled.
Here's how to cancel an order:
- In Seller Hub, go to Orders, or in My eBay, go to Sold
- Find the order you want to cancel, and from More actions, select Cancel this order
- Choose a reason for the cancellation to finish
Once the buyer has been refunded, you'll receive a final value fee credit.
Further information on the eBay cancellation process and refunds can be found here.