"Mishra wired the $500 payment . . . " Is that not the big red flag! A wired payment required!! PLEASE. Sorry, but the scam victim here is should know better, and now they are poorer because of something any nitwit would know. Of course, you will never get back any of that money wired. That is why reputable businesses like Dish use Credit Cards. Credit Cards have protections and accounts in good standing at financial institutions. That is why scammers almost always require a wire transfer. If someone is dumb enough to wire funds . . .. All these scams only work when the mark succumbs to greed.
Best advice, if Dish or some other company with whom you have a relationship calls YOU with an unbelievable offer, hang up and call that company and ask for the supposed deal. All repudatable companies have you flagged for eligibility on thier computer systems. Never fall for the "now or never" ploy; that just affirms it is a scam. No repudible company is going to say "this instant or never."
The victim ought to consider this an expensive lesson--in greed.