Trip a deal

[Stephen76]

I have booked a trip to china with trip a deal
My flights are with China Eastern Airlines MU flight number
I am platinum with Qantas can I use the Qantas lounge and the Qantas first class lounge in Sydney

 

[AIRwin]

Looks like just the Business lounge:

https://www.qantas.com/au/en/qantas-experience/at-the-airport/airport-lounges/qantas-lounge-access-eligibility.html#qantas-international-business-lounge