I have looked over your closed listings. Many of them did send automatically WBN. However, some for some listings WBN has not been sent. These are listings for which auto-WBN was set to off, so you will have to send them yourself, from postsale pages. Simply select from left nav, PostSale and then WBN to Send. A list of items will be displayed. Select the items (maybe all of them?) and hit the SendWBN button.