Ebay allows you to end an auction, for any reason, if there are no bids. If there ARE bids you can still end the auction but they ask if you wish to sell to the highest bidder. If there is a bidder you may be charged a final value fee even if you don't sell the item to the highest bidder. If there are <12 hours before the auction would have ended, you may not end the auction early.

Full rules at: https://www.ebay.com/help/selling/l...d=&toolid=10001