All subscription payments are processed through Stripe. Failure to make a payment on the due date will result in your account entering a Past Due state. When you make a late payment for your subscription, a portion of the amount will be allocated towards clearing your past due balance.
For example, if your subscription plan renews on the 10th of every month and if the payment did not occur, your account will become past due on the 10th. If a payment is made on the 15th, it will cover the outstanding dues from the 10th to the 14th.
Therefore, it is important to pay your subscriptions on time and make sure that your payment details are accurate for automatic payments to occur on time.