After clicking the Subscribe button, the chosen payment method is saved and set as the default payment method. The next invoices will be paid using the default payment method.
Within your payment plan outline, when it's time to bill, you will receive an invoice and will be charged accordingly. Once the payment is successfully processed, your shipment will proceed.
To update/ change your subscription plan shipment/ delivery address, please visit your account. In the left side menu, click the Address tab. Made all necessary changes and clicked the Save button.