I found another agent in Philippines who was cheaper than you!
The Philippines is full of unregistered “agents”. And almost every travel agent becomes an instant Migration Agent when the opportunity comes their way. Of course they’re cheaper! Registration for Registered Migration Agents costs money! So does maintaining a professional library, attending Continued Professional Development courses, keeping proper records and running a professional office. And there are those “agents” who don’t actually submit an application for you at all. Very cheap! Proceed at your own risk. In Australia it is a criminal offense to give migration advice without being registered with MARA. With an unregistered agent, you run a serious risk and you have no protection or comeback. Please read this: https://www.downundervisa.com.au/2013/05/26/no-substitute-for-knowledge-and-experience/