If a material change occurs in an applicant’s circumstances after a visa has been granted but before arrival in Australia this office must be informed immediately that a change has occurred.
If a material change in circumstances is not notified, any visa granted may not be valid and this may result in a visa holder
If a material change in circumstances is not notified, any visa granted may not be valid and this may result in a visa holder being refused entry to or becoming an illegal entrant from the date of any entry to Australia.
不明白。。好像没有见过别人也得到这样的话。。。你写邮件问下签证官吧,what do you mean by material change? Which circumstance will be regarded into application change? 你现在就是等准签吧,不会有什么其他事的。