The Express Plus Centrelink mobile app makes it easy for you to manage your Centrelink information online. To use the app, you'll need to have a Centrelink online account linked to your myGov account. With Express Plus Centrelink, you can do most things you can do in your Centrelink online...
How there can be report dates set weekly and then the app goes under maintenance every few days so nobody is able to access it is beyond me, the app might as well be a phone book for the Centrelink numbers so the public can directly call when the app is down to do their business....