Hearing Impaired Customers:
The National Relay Service makes it easier for you to contact After Sales™ if you are deaf or have a hearing or speech impairment.
Dial 13 3677 (Voice and TTY) for all calls within Australia.
Dial 1800 555 677 (Voice and TTY) for all calls within Australia to 1800 numbers.

http://www.aceinfo.net.au/services/NRS/index.html

Non-English Speaking Customers:
The phone number for this service is 131 450.

http://www.immi.gov.au/contacts/telephone.htm#d