We had a buyer name Jose Henrique (email: [josehenrique0000@gmail.com] ) with his phone number in china 86-96-894-27776 ). He gave us a copy of his bank statement, etc. to prove his source of fund and signed purchase contract. But we lost contact when he was supposed to put down his deposit. We Googled his phone number and found this site.
His approach was almost exactly the same.

He came from Zillow so I warned Zillow about this.

We still not sure what he was trying to accomplish by his action.