If they have the wrong address on Bitfunder, how would he identify the owner of the loan units? If you no longer have the private key to the address, you're pretty much screwed.
One is e-mail. If not, then prove that you still has access to your BitFunder and Weex accounts. All the account data, account names, passwords and 2-factor from both is in hands of Ukyo and Graet, who is the director on Australian Weex.
So don't give me this bullshit. Graet has access to all the data. Graet either doesn't give a shit or is just too lazy to verify account data.
He's only indicated he has access to the list of Bitcoin addresses. Bullshit or not, you can't determine if he has more data than that.