Originally Posted by pandaperth

There have been no rules changes in this regard (at least as far back as 2008 when I first got into xONEx's).
The RTW desk always assumed you're located in the USA, and therefore priced tickets by the 'higher of country of origin/country of purchase (USA in this case)' rule

To get anything different you had to explicitly tell the agent where you would be purchasing the ticket - usually country of origin or Canada (due to the exception, which has now been removed).