APD is £0 for as journey such as CDG-xLHR-SYD in Business Class. Change that to CDG-oLHR-SYD and APD goes up to £170.

This would be collected from you. Also, as this is a re-issue (change of routing), on a DONEx another UD$125 is payable. Finally, the Airline that does the re-issue is entitled to charge a service fee.