it says in like 15 different places on the page that you create a new account, you sign up with your business email, and while the interface is similar to the p

it says in like 15 different places on the page that you create a new account, you sign up with your business email, and while the interface is similar to the personal version of facebook, it's completely separate. My guess is you didn't read any of the linked page other than perhaps the title.