Hi driveswitchltd-h,
Thank you for coming into the Community about your app. Let's check to see why it won't update.
When you say "pull down", do you mean refreshing a page to load new content or updating the QBO app? You can sign out and sign in again to refresh the app or reinstall it. Both steps will actually work in both of the above situations.
Feel free to share an update after doing the things I mentioned above.