hi @yohji , @Chinky03 . I'll try to answer your questions in this post.
I had my exam scheduled originally on Sept. 1, but I saw a post here saying that slots were opened at an earlier date, so I rescheduled it to July 1. I did this 2 weeks before the actual test date, so I had a 2 week lead time to review and prepare. The review time varies depending on the needs of each individual, but for me, 2 weeks was enough as there are only a few free review materials from NAATI and dialogues in Youtube, so you'll find that you're out of review materials very fast. I have 8 sample Eng-Fil dialogues that I downloaded from NAATI, and once I finished those, I referred to this site for a few more: https://www.youtube.com/channel/UCSmMakvSSTQNhp_zUGGi7_w/videos
These are all in English though so if you've got someone to help you, let them translate a few segments to Filipino, read those to you, then translate them back to English. If you finish through these too, you can search English dialogues or Tagalog dialogues in YT and there are a lot in there that you can use to practice.
Exactly a week before the actual test date, I received the calendar invite for the exam via e-mail. The exam will be held using MS Teams.
During the exam day, make sure that you are using a device with a camera. The whole session will be recorded by them. Your internet connection should be Broadband; using mobile data is not allowed. Further requirements by NAATI in undertaking the exam can be found on their site. Just make sure to read and understand those before taking it.
During the exam proper, the invigilator will require you to close all applications open in your computer (I was using a laptop). They will require you to turn off your mobile phone (they should see that you turned it off). They will also require that they see the four corners of the room that you are taking the exam in. All electronic devices in your closest vicinity should be removed. Lastly, they will require that you show them an ID for verification. I used my passport for this; I don't think there's another ID that can satisfy this requirement besides the passport. After these, they will read you the repeat and correction policy. They will also mention that the exam will only last for 20 minutes; they will stop the exam at 20 minutes and if you're not done by that time, they will only evaluate the parts of the exam that you finished up to that point. I don't know if you will be penalized for the parts that you will miss, so just make sure that you finish before 20 minutes.
For the actual exam, if you practiced with the NAATI materials, the feel of it will be exactly the same as that. This went by so quick I did not even notice it. The topics assigned to me were:
1) Fil speaking lady inquiring with her bank on why she received a card in her mail that she did not apply for
2) Fil speaking lady having her blood taken for a blood test
So there, those are my experiences. Let us know if you have further questions. Good luck!