It's incredibly unlikely the other person is out of pocket, they'll have proved no delivery and got a replacement or a refund.
EE are, like them all, piss taking profiteering cunts. Take it to your nearest dodgy high street, tell them exactly what's happened, take the cash, chuck a few quid at a charity and call the rest a rebate and treat yourself to a few curries. If it had ended up in landfill, there's no winner. You've done a great thing for the environment, done some good for charity, and, in a world of absolute shit, had yourself a little win.