I have read that there is no official audit data provided by a competent body.
Then what you read was wrong. I have read the actual audit report from a well-established accountancy firm that most certainly is competent.
You may be right, but we don't know if this accountancy firm is on the level.
To this day it still blows my mind that for years now, trusted people like Andreas Antonopolous makes themselves known and available to the crypto world as a trusted independent auditor (who at one point he was even offering this service for free). And yet none of these exchanges will have him come in and do one.
In my mind, that speaks volumes.
It reminds me of Janet Yellen's garbage responses:
Q. "Why won't you let the Fed be audited?"
A. "The Federal Reserve is one of the most trusted and transparent organizations.. blah blah blah...."