To start using the app, sign up with your email account or login via a social network account, such as Facebook, VKontakte, or Odnoklassniki.
If you access Topface via a social network account, then there is a chance of having multiple accounts that are not connected to each other.
If you login to Topface using your email address via the "Login" button, then your account will not be connected with a social network account.