I opened a personal account in 2015 and completely forgot about it.
Now I have been added as a second user for a business account and have no idea how to login into that... because every time I login, I end up in my personal account.
Use the unique login ID (not email address) assigned to you and password you created via email invite after being added as a user on a business account to log in.
If you do not know or remember the login ID, ask the business account owner for it.
