Not only AurumXchange, Mtgox dont have a contact physical mail address in their site
or may be i missed to see it?
When you want to apply for AML Level 2 status, you can get their physical address easily on the website.
I had done it and got my account approved in about a week.
But now as we have seen a few posts earlier there is proof that you have this information regarding AurumXchange. There is no reason to delay sending the documents to unfreeze the funds anymore. Please post publicly as soon as you sent them there. What is your guess at this point how long it will take you?