ACMA is formerly the Australian Broadcasting Tribunal (ABT) and the Australian Broadcasting Authority (ABT). The Australian Communications and Media Authority (ACMA) is responsible for the regulation of TV, radio and internet.
For radio and TV content, you must complain to the broadcaster first.
Australian Communications & Media Authority
PO Box Q500
Queen Victoria Building
Sydney NSW 1230
Fax: (02) 9334 7799
Send along a copy of the reply from the station (if you received one).