Lone Shark... what you need to do is look at your full bet history and import it into a spreadsheet and calculate the total wins and loss amounts with a running total.
Looking at these screenshots, it is impossible for anyone to say what really happened... On your screenshot, the rolls show as losses with a -0.0005. On theirs it shows as a win of +0.00001. What nobody can see, is what actually happened to the balance at this time.
You claim that it "ate your balance"... but we can not see that... and unfortunately, I doubt you can prove it unless you happened to be recording video at the time

They say it was just a "visual bug" and that, while it displayed as a loss on your screen, in the server logs (and now in the new screenshot of your roll history) it shows as a win, so your balance would have been unaffected.
Like I said, dump your ENTIRE roll history... and start creating a running total based on win/loss amounts... you'd need to add/subtract any deposits/withdraws and any faucet claims...
That should at least prove one way or the other whether your account is short by the 0.002 or if in fact it was just a so-called "visual bug"...