In this area My eBid > Listings I Ran - Unsold - the listings are displayed 59 per page ... the All Delete button at the top selects just that page only ... so, if you have many pages to delete then you have to to repeat the process over and over - I recently had near on 2000 listings to delete!
Can the button do what is says on the tin please? viz: Delete All
Unless, of course, I am doing it wrong!