72 Hour Transit Visa, do I need to do something in advance?

Hi there,

I will be arriving in Shanghai on 30th December from Sydney at 6.30pm and then on December 31st i leave at 11am for London. I am an Australian passport holder. Do i qualify for the 72 hr free transit and outside of letting the airline in Sydney know i will be transiting is there anything else i need to do? I'm not sure if they will issue me the ticket from Sydney all the way through to London but i do have my booking confirmation i can print out from the Airline to show them at Shanghai airport that shows all the legs of the journey.

Thank you