How do you download the new update?

When you put a new disc in the drive, there is inevitably an update that needs to be downloaded too. How do you know when the disc has finished installing and that the update is downloading in the background so that the xbox can be turned off?

Hope that makes sense!!

How do you check for an app update? I deleted & reinstalled it so I assume that would download the new version wouldn't it?

How do i get access to the new maps? Do i need to download them? i have already purchased the premium update.

This is the only account I've ever had so it definitely wasn't purchased under a different one, that's why I can't work out why it isn't showing up anywhere

Purchases are always tied to the account that purchased them. If they don't show on your account, then that usually means they were purchased under a different account. If that's the case, you would need the other account or repurchase the games on your own account.