Hello MacRumors forums. I am posting here on advice of a friend, who said I could get advice. I sold my MBP (2007) via eBay on Sep 19th. The buyer made a prompt payment via PayPal, so I though everything was normal. Before sending it, I was talking with my friend who said: "Does the buyer have 0 feedback?", to which I answered "I do not know, let me go check." Effectively, the buyer was international and with 0 feedback. I wish this would have raised the red flags it should have in my mind... The good news is that my friend said "take a video showing the system working and in the condition stated", which I did. It shows the date, serial numbers on the screen and on the box, process of power off and packaging. I then shipped the item, a few days later, insured. Fast forward a month after the day of the sale, to Oct. 18th. I receive a message from the buyer stating that the machine does not work. That they only see an Apple logo and nothing else. And they requested a full refund. Sigh... I went to eBay and sent feedback stating the possible scam. I got a record number, but eBay never got back to me. On Oct. 22nd, the buyer opened a case against me (seller) via eBay, stating that the item was not as described and was damaged. I replied via the case, that the item was exactly as described and properly packaged. I mentioned that I could not offer technical support and that she should go to Apple to get technical assistance. I also added that I had the video to proof the item was exactly as described. The buyer escalated and I am not awaiting to hear back from eBay. I did call eBay and they reassured that at some point they will request information from me, at which point I could supply the video as evidence. Of course, my concern here is that the item was tampered with. Removal and/or exchange of internal components, etc. I have a flawless feedback over 11 years with not a single negative feedback or incident. It is not huge, but not shabby either... 165. I am waiting to hear back from eBay. In the mean time, could someone offer some advice on what I can and should proactively do to avoid getting scammed? Thanks.