Go to the Items screen for an auction

To delete any Item it must first be WITHDRAWN

Select (tick box) the items you want to delete and set them to be WITHDRAWN by clicking the WITHDRAW button from the top Items menu screen (see below image of Items Menu)

Make sure the items are still selected and click Delete from items menu

Click Delete in the first pop up screen

You will receive a further pop up confirmation message, enter the word DELETE and a reason for the deletion, then click Delete