You may have to contact a specific Apple Store location, or an Apple Authorized
Service Provider in your region, to ask; since these ASC discussions do not
directly contact Apple personnel in specific areas... See these links to locate
a Store, or a Service Provider in your country/region.
Australia - Sales, Service, Training, Certification, Consultation
click above, or this full link: https://locate.apple.com/au/en/
The Service section in the above page, allows you to enter City nearest
your location, and choose from several AASP or Apple Store locations
that offer a variety of service options based on product detail.
Other links to more general topic areas including the above, can be
accessed from these links below:
Hopefully this helps somewhat, as estimates are a local matter where
someone has to inspect the product, and determine what else may be
at fault inside, sometimes after opening the unit up for more information.
So you may or may not get an actual repair while you are there, but more
likely would be able to get a close estimate of the costs to repair, there.
Some locations may have an arrangement for an off-site facility to handle
the repairs; so that matter is also a local situation and may vary by region.
In any event...
Good luck & happy computing! 🙂