Have you phone Qantas North America and asked?
They may be able to patch you through to QF Au
Anyway making phone calls via skype and equal is cheap.
https://www.qantas.com/travel/airlin...w-and-existing
USA 1 800 227 4500**
Customers in the US who are deaf or who have a hearing or speech impairment can call via the National Relay Service by dialling 711, 24 hours a day, 7 days a week. The Communication Assistants at the National Relay Service will assist customers by contacting Qantas Airways on 1 800 227 4500.
Or
https://packages.qantas.com/enquiry
Original request thread by OP:
Cairns Great Barrier Reef - packages with hotels and/or flghts?
Others (but not a recommendation)
https://www.flightcentre.com.au/holidays
https://www.flightcentre.com.au/deals