Hi,
So first I downloaded OneNote from AppStore.
Now i try to sign in, i click login, than fill up my email address, in next step i must choose if i login with my MS account or O365 account (i call it corporate in first post), than i can put my password. After a little bit of time i see following information (translation from Polish):
Checking Office 365 subscription
Cannot find eligibility Office 365 subscription for this email address.
If you have any other email address associated with this subscription please use it, otherwise please use free account.