Adobe Sign - Small Business - USERS

Hi ive just purchased this product whuch gives 1 licence and 9 users. I have set up the account with 6 users each with their own work email addresses.

However, I would not appear able to allocate the product against each user as it says the licence is used (by me as the adminstrator)- so it appears as though all users within my organisation will need to use the admin/licence email address rather than their own. Does this seem correct?

I thought that having 9 users agsinst 1 licence would mean that each users could use the product by using their own work email address ?