If you are in Zambia then you will note that there is no Australian Embassy in Zambia. There is however an Honorary Consulate in Lusaka and you can contact them for assistance if you are having problems while in Zambia.
Should you need anything else that the Consulate in Zambia cannot assist you with then you will need to contact the Australian Embassy in Zimbabwe which Zambia would fall under. The contact details for the Consulate has been added below.
If you are looking for an Australian visa then you will also need to contact the Embassy in Zimbabwe.
Australian Honorary Consulate in Zambia
Address: 155 Kabulonga Road, Kabulonga, Lusaka, Zambia
Telephone: +260 (211) 840 578 / 9
Mobile: +260 966 731 073
E-mail address: firstname.lastname@example.org