As mentioned above, tell eBay that the drone was sold under false pretenses. It is a stolen item and it is worthless. eBay and or PayPal may have a leg to stand on to get your money back. Doesn't cost you anything to try, and it might get you...
Although you may have bought it with good intentions, you are in possession of stolen goods...it is not legal. And the policy of DJI in this regard is to help mitigate drone theft. Did you report the seller to ebay, did you leave feedback? The...