I recently purchased an AppleCare agreement for my unibody MBP off ***** on ebay. I registered it but it said that the registration was still in progress. Things take time so I checked again today (I bought it two weeks ago) and it still was "processing". Being annoyed, I called Apple and they told me that ***** had purchased the agreement then refunded it the next day, then gave me the invalid agreement number. I should have asked him to give me the entire box with the serial number and receipt included not just the code (I was confident of buying AppleCare off eBay having done so successfully many times in the past.) I filed a report to eBay and going to file one to paypal soon. Any advice to give? edit: Removed seller name as he provided a full refund.