I have taken pictures of the packaging showing that he lied about when he posted it (he posted it this tuesday, when according to ebay he posted it last thursday), and demonstrating that it is the incorrect product. I have given him until tomorrow afternoon until I file a claim with PayPal demanding a full refund.
According to Ebay, "this seller does not accept refunds", but luckily, it's a paypal transaction, so that would most likely just result in me getting my money back and keeping the xbox. We'll see how it goes, but this dick being slack on postage has meant I have waited 2 weeks since purchase just to receive the wrong item, when I am in the next state over to his address. And then he has the balls to send the wrong fucking thing.