If you dont relist for 7 days and then start the non paying bid process you will get your listing fees back and the person shouldnt be able to leave bad feed back as ebay have changed the way you leave bad feed back and you have to tell them the complaint now when leaving bad feed back and start the right process ie item not as described/non paying bidder ect ect

I know this as i got an email from ebay a few days ago saying we are changing the way feed back works.