When you remove a team member, they will be notified that they have been removed from your team, and they will have the option to convert to an individual consumer account.
As for your billing, we don't think it's fair that you should continue to pay for team members who leave partway through your yearly subscription. That is why when you deactivate a team member, we'll credit you for their remaining subscription time. This credit will be applied to the next payment you make.
Of course, if you have any more questions or run into any issues, please reach out to our support bears here.