You may automatically acquire Australian citizenship by birth or adoption, or may apply for Australian citizenship by descent or conferral. If you are over 16 years of age at the time you make your application for citizenship by conferral, you will obtain Australian citizenship only after you have made the pledge of commitment and have been issued with Evidence of Australian Citizenship from the Department of Immigration and Border Protection.
The University is unable to accept the letter advising you that you will become an Australian Citizen. You must have attended the ceremony before changing your details with the University. You will also be required to produce your Evidence of Australian Citizenship to the University.