My daughter purchased a Jawbone for me last December as gift for me from ebay seller zKarlo.com in Burnsville, Mn.
It worked for a couple of weeks but then quit working right. I returned in Jan for a replacement. It did not work as well as the first one so I packaged it up and finally returned it in late Feb or Mar asking for a full refund.
The first contact for a replacement was very prompt and courteous. Although it was totally via email.
However, I have made numerous complaints directly to zKarlo with absolutely NO response since returning the second one.
I may very well spend more than the $85.oo lost just to get them to tell me they refuse to do anything.
I don't have any beef with ebay except that at this point I haven't figured out how to complain back thru their site.