Sanyo Shinkansen Discounted One Way Ticket

Hi, I read on the JR-West website that there is a Sanyo Shinkansen Discounted One Way Ticket that I would like to use from Shin-Osaka Station to Hakata Station. It offers significant savings from the normal price. The website states that you have to purchase an Exchange order (E-ticket) from travel agencies outside of Japan but does not supply a list of the agencies. Once you get the exchange order you can pick up the ticket at select train stations in Japan.

Thank you for your assistance!