Creating a GROUP membership:
To consolidate the $10 monthly charge into one group charge on a credit card, a Premier member of your team can go to their Profile in the upper right corner  / 'Company Administration' option in the menu, and then navigate to the Invitations tab to send an invite to another team member.  Once a user accepts the invite,  if they have a free/standard login, they will then join the Premier status, and the credit card on file for the person who invited their team member will now be charged an additional $10 for the new login.  If you invite three users, along with yourself, you will have a $40 monthly charge on your credit card vs having four separate charges for each Premier login.