I downloaded the app, went through the process to link the software ID number with the AT0, then set up Employees etc. However I then went to sign in again and was having much difficulty with the app not recognising my email address. I t wanted me to sign up with as did and.....looks like it has set up a new account with new Software ID. Do I need to register this new ID with ATO?? has this now overridden my previous account??