The last couple of weeks I have been selling on eBay to get rid of a lot of stuff that is cluttering up space. Since selling on eBay is relatively new to me, I ran into some non-payments on a couple of items. I did all what eBay said to do. I tried to send a message with the buyer and got no reply. I did the eBay "Resolution Center" report. Still no response. Now it's been almost 2 weeks and I'm about to close the case as a non-payment. Should I leave a negative feedback and leave a non-payment message or leave it a a nutural feedback?