I took a look at your account and it is not currently set to automatically send your WBNs. You can have your WBNs automatically sent by going to "My Account" --> "Post Sale Management" --> "Winning Bidder Notification" --> then select "Automatically send a Winning Bidder Notification (WBN) when a listing closes with a valid winner".
If you are having trouble manually sending a WBN, please provide a specific listing number as an example so that we can take a closer look.
