First up - do you have the myID app?
Recover your account using myID
go to the myGov sign in page enter your username and password select the link - I didn’t get my code , I can't access my app or I can't answer my question select Continue with Digital ID select myID as your identity provider enter your myID email address – a 4-digit code will appear onscreen log into your myID app and enter the 4-digit code follow the prompts to sign in to myGov.