Changing your billing method requires you to go through the upgrade process again. Your payment will be automatically pro-rated, but pricing may have changed since you originally subscribed. When you re-upgrade, you must do so at the current pricing.

IMPORTANT: After your new subscription is live, you must cancel your old Paypal subscription manually. To do this, login to your Paypal account, then click here to find the subscription with us and cancel it.

You must cancel the old subscription, otherwise it will remain active. The reason we aren't able to do that is Paypal does not provide an API for us to cancel old subscriptions with an automated process.