Pretty certain you don't have a case here.
First of all, Exodus is not at fault. Shapeshift is the provider of the exchange, they have hundreds of sites and services plugged into Shapeshift via API. Secondly, you should have a clear picture of how much you get in units of BTC, not fiat. Perhaps you did receive what was worth closer to $400 but that value's changed as BTC price changes.
Thirdly, every time you use Shapeshift, you get a published exchange rate before you confirm. Shapeshift on Exodus has terrible rates, so I'm not surprised you lost a lot changing there. Next time you want a better rate, head over to an exchange and trade it manually.
P.S. Shouldn't have hijacked this almost too old to look at thread. Open a complaint, and provide details with evidence. Ranting like this won't help you.
ShapeShift built in exodus wallet do really have terrible rates that why i dont really bother to use em up since you would able to get better rates by just simply manual trading on exchange.
I have tried to use Exodus but it doesnt really suits me.