No sooner had I responded to Anthonie Van Duckerweg, Reverend Anthoni Mark, and/or Mr. David Mark with the information required to claim my prize, than I was sent proof from Robert E. Diamond Jr., Chief Executive of Barclays PLC, showing that this is indeed for real, and that I am indeed the rightful winner of $600,000.
He went so far as to send me proof of his identity in the form of his Barclays Staff Identity Card.