Just now when I opened the OneDrive app on my iPhone I noticed on the Me Tab on top next to my account the app is also showing my other accounts which have nothing to do with my account. 3 more are showing, one is O365 trial I created but did not use my personal email address which is my main and only account I use on OneDrive and the other two are work related, again nothing to do with my personal account so why have they suddenly appeared? When I click on them,I get a message 'o add this account you need to enter your sign-in info' I've never used any of these accounts on my OneDrive iOS app.