When you join as corporate client, your membership can begin on the first of the current calendar month (if you sign up before the 20th of the month), or the first of the next calendar month.
If you choose the first of the current month, then you will pay the full membership fee and you will have the membership active for the remainder of the calendar month before you are then charged again at the beginning of your next membership month, which is on the first of the next month. If you choose the first of the next month, then you have to wait for your membership to activate on the first of the next month. Your first payment will be deducted on the first of the next month.
If your membership was not approved by your employer by the 20th day of the month your start date will be moved to the first of the following month.