Top case left corner slightly bend, stain-like scratch surrounding it.

I dropped my new MBA and unfortunately, this happened. The case is slightly belt and there's a scratch? surrounding the place where it's beng, but it looks like a stain (like if you have wet fingers and tap the case). I even tried removing it with soapy water soaked paper towels but it obviously didn't work. Also, the scratch only appears under direct light (and actually kinda reflects it), but it's pretty pronounced and recognizable when it does.

Is there a way how to bend the corner back? Is the scratch related to the bent corner? Why does the scratch look like a stain?