I've searched through the Oneworld conditions of carriage but still have yet to find anything relating to this. I also looked through the terms on LAN Airlines website for the SCL - SYD flight and can't find anything. I never knew this was a high-profile flight.

Looks like if we go back up to Taipei after returning to Sydney, it will just cost us an extra $200Cnd per person to get back to Calgary then leaving from CCS and risking the chargeback. That and we may need to give up visiting Venezuela. I forgot why I was wanting to go there anyway..