They could easily look at your withdrawal history and then take your account that much bitcoins...simple accounting...
So you withdrew coins that were tied up in an order right? Say a sell order...
They will just not give you your fiat that got converted...how is there any gain there for you?
They wouldnt reverse it. You wouldn't get anything else but the coins that you had in the first place....i'm still not following you...
How would you "make" 200 btc? I still don't get it......wtf?
now is not the time to speculate or spread FUD. this has happened before as i said above. let's wait for Tux to give us an explanation. i might head over to IRC to see if he's over there.