A while ago I ordered a few of those cheap arduino modules off ebay. Well six weeks later and its a no show, so I opened a case on ebay. The seller responded and offered to either refund me or resend the items on the provision that I close the case first, and deal with them outside ebay, because having open cases against them 'causes a lot of problems'. Now, I have no experience in selling on ebay, but this sound a little fishy to me, as my understanding is that I will lose all protection from ebay should I do this.
Has anyone else had this kind of experience? How should I handle it?