Hi...
I added my hubby as a 489 Subsequent Entrant; as an on shore applicant - while my application for Subclass 489 was still in progress....I used my file no to add him ; u can either use your own immi account or create one for your spouse. My hubby was on shore on a Guardian Visa, accompanying my 2 children who were residing and studying at Magill in South Australia. I was in Malaysia as the primary and off shore applicant.
My visa along with my children was granted on 13/09/2018 and a week after - my hubby's visa was granted on 21/09/2018. So, based on my experience, Maggie is right but I am not certain if you can pay AUD 1860 and directly add your spouse to your current application or pay AUD 3800 to be added as a subsequent entrant. I wish to highlight as well...that even as a subsequent entrant , I was also discouraged to add my hubby by a CO but I insisted and wrote back that good or bad... on whether we are granted or refused - we will face it as a family.
Rafaq... you can wait either for your visa to be granted then after apply for a tourist visa for your spouse...hence she will be a subsequent entrant 489 on shore applicant where she will be granted a bridging visa until a decision is made....or as per Maggie's suggestion - write to your CO first for guidance/clarification.
All the best to you....