Note: Your subscription payment will be processed on the same calendar day every month. However, If you set up your subscription on the 31st, you will be charged on the last day of each month.
Example: If you were to set up your subscription on January 31st, you will be charged next on Feb 28th (29th if it's a leap year.) If you sign up on October 31st, you will be charged next on November 30th.