For existing subscriptions, you may change your payment method for future shipments at any time.
1. Log in to your dashboard and tap Payments in the menu to view the payment method(s) saved to your subscription account.
2. Tap Add a New Payment Method.
3. Tap to assign this new payment method to your active subscription(s).
4. Then, after you've connected a valid payment to your active subscription(s), you may remove old payment methods from your account if you wish. Simply tap Remove next to old payment methods.
Your new payment method will be used for any charges going forward for the subscription(s) you've selected.