I've been selling miners (well gpu's) on eBay for a few of months and so far I've had zero issues
Thanks for that info. With GPUs you have a kinda higher shelf-life than these ASICs so it will prob not be worth so much to file a claim there.
If you get your asic- miner back from a customer after a month, that ***** might have mined well over 1k with it and the value has decreased for 700$