@Tsai ****
Tm30 is done by the hotel/landlord, not us.
We have to do the 90 day report which is the TM47.
I didn't know this aswell, it wasn't clear with the DTV application process, there was no advice about other things. It's not until folks here in the group said it's normal to report, SO I checked with immigration and it's correct.
With DTV we must do TM47 if we stay 90 days or more, and our landlord or the hotel folks submit and create the TM30 for us (no always but ask them and they should be able to, it's their responsibility).
I got my TM30 from my landlord (I arranged a 1 year rent contract) once I got here with my DTV last month.