Background
I have an Australian PR visa (subclass 189) and an Indian passport. I have recently renewed my passport because it was due to expire. I have submitted my new details via : https://immi.homeaffairs.gov.au/change-in-situation/contact-details on 28 Aug 2019 but my new passport details have not been updated yet. (Been trying to contact them to sort it out)
Problem:
I will be going out of the country for holiday for a couple of weeks.
Question:
What will happen when I return to Australia but my new passport details haven't been updated in their system ?