After you add a new member, the new fee will be prorated (to the number of days left to the billing day) according to the plan price and billed immediately. Your monthly invoice will reflect a calculated amount, taking into account the number of added members. To learn how to add new members, click here.
If you delete a member, your new fee will be reduced on the next billing cycle, equal to the number of users removed. The unused funds from the current cycle will be credited to your account and used for the next charges.
Note that deactivated members do not have access to their accounts, however, deactivated accounts will be included in your monthly invoices. To learn how to deactivate or delete members, click here.