Your pricing is advertised as per seat per month this is not exactly true as once you sign up and add a new user you need to pay for 5 seats. I am rather annoyed at this false advertising as I need to add a 6th team member and it is going to cost me double what we already pay for this one user.
You can buy 2 seats minimum, not 5 as you initially indicated. You can add single seats up to 5, then you must add 5 seats at a time up to 30, then 10 at a time, and it escalates from there.