We all will keep quiet now until we see this , remember it is not for you or Dr Samrerng to pay for the proof, it is the mandate holder offering the AU for sale. An in dat SKR is very valuable asset when selling Au .it is the initial proof of POPs, you are very much entitled to know the potential of the buyer once the SKR is established as a real document. I would advise you also have this document notarized before sending, This makes it a officially sworn Document .