Selling a high cost item on Ebay and want to cover myself on every angle so I don't get shafted! I was well and truly around ten years ago when I sold dh's synthesizer . The buyer claimed it wasn't working (we had tested it fully before sending) and sent it back. I had to refund him fully including all postage costs and when it did come back we found that he had opened up the back and removed some of the parts rendering it useless 
. £400+ down the drain and Ebay wouldn't do anything
All advice gratefully received 