请问各位大侠,我父母之前申请600的三年多次往返旅游签证。在澳洲呆了一年之后,现在已经离境,并且离境后已经申请了143类付费移民。那现在这个600签证还有效吗?还能用这个600签证回澳洲吗? 持分分等待,谢谢大家! 移民局收到143签证的回信上提到:Do not finalise any arrangements for your travel to Australia until you are advised in writing that you have been granted a visa.