22-01-2018 11:39 PM
Seller cannot end the auction but they can cancel your bid, probably don't know how to. If the auction ends with you as winner, they can then very easily cancel the sale from the menu to right of the item. It will get them a defect but if you ask them to cancel it they will be able to without defect.
When ended, send a message saying in view of the item being broken you wish to cancel.
Someome else may outbid you and save you the trouble.