Originally Posted by Himeno

eg: If I am buying a ticket in Australia (country of sale) for travel starting in Japan (country of origin), I would ideally pay the Japan price converted to AUD. However, as the Australia price is more then the Japan price, I instead have to pay the Australian price.

The "Canadian Exception" voids that - if the country of sale for the same ticket was Canada instead of Australia, I would pay the JPY price converted to CAD.

In 2010, I booked a DONE3 departing Tokyo from Australia via the online tool. I paid the the Japan price in JPY.
Early in 2011, some bugs popped up in the online tools booking system related to different systems talking to each other (eg, Amadeus and Sabre) which prevented a booking from completing. As a result, I was unable to book my 2011 DONE3 (departing Korea) via the tool. I instead had to make use of a travel agent in Canada to process the booking and I paid the KRW price converted into CAD (which my bank then converted to AUD).