It is your right to change employment services for whatever reason, at any time, as many times as you want. You don’t have to have a bad experience at your employment service to decide it’s not for you.
The best way to do this is to:
You can change employment services without contacting your old employment service. If you need a pause on your job search you can contact your GP or your employment service provider.
How do I change my Workforce Australia provider? | CoAct
Guide to transferring DES providers - Easy to follow step | CoAct