Welcome to the Community @Foxmulda
That is a terrible experience and you were fortunate to be able to buy a fare while you try to get it sorted.
It is not obvious the frequent flyer program is the best place since they are all about miles not bookings and fares, even though they seem inextricably linked and FF members are encouraged to use that portal.
You might embed your original email(s) using the form at Complaint compliment and claim form | Qantas AU as a complaint?
This 3rd party page has many (unconfirmed) methods to contact QF. Whether there is any better response from one or another remains to be discovered.
Good luck with it, and please let us know if any of these contact points are helpful/responsive to get you sorted.
