I sold a few domains on Ebay. I had a few non-paying bidders too. Yes, Ebay refunds all fees if You use their non-paying bidder program. It is my experience that Ebay is not the place to auction domains: Your domain is lost between all the others. If You pay for featuring, it's just the same: Lost between the featured domains. Unfortunately, this counts also for most domain selling webs: Getting featured changes nearly nothing. I found that buyers were well-instructed people, who knew exactly what to look for. I think daily domain trade is for people who know what and where to look for: Keywords in the domain name - Keywords in the web site.