Best Sales category with glitchs

I was looking at the best sales category, and it seems that all the new itens that are uploaded in the site, are instantly bought by someone.... i saw one of my itens in this category, but no one has purchased my model...strange....

Maybe you are hours or even minutes away from getting the news on that you did in fact make a sale. They state that they update sales statistics every 12 hours however i've seen new items appearing every couple hours before so i donno really what to think.