You are the holder of a bill of exchange (Chapter 28) drawn by Richter (drawer) on Ward (drawee) payable to MacDonald (payee) or order, accepted by Ward and endorsed in blank by MacDonald. Upon presentment by you (holder for value in due course, textbook p. 643) to Ward for payment, payment is refused. Explain your legal position in your own words. What steps should you take to protect / assert your legal rights?