Proof
http://www.youtube.com/watch?v=SEvW0l0bHKw @ 1:10
I saw this happen live on a stream. The withdraw failed once before, so recorded the second time.
This guy deposited .02, made it up to .04 and tried to withdraw only for his balance to reset to 0 after an error. The deposit can be confirmed with the wallet addresses in the video.
He contacted them and they said it was faked which is not true.
Total of .08 stolen, wonder how many others this has happened to.