We charge your subscription fee on the day you enroll by clicking on "start reporting." Your card will be automatically drafted on the same date you started your subscription each month. You can cancel at any time for any reason however you will not be able to change the subscription date.
You will be able to see all the charges from your dashboard by going to the top right and clicking on your name > subscriptions > history will be located on the right-hand side of your browser.
If you do need to change your subscription payment date you will need to cancel your subscription and then log in and activate your subscription on the date you want to be charged.