Can I change my subscription after purchase?

Yes. If you have an active subscription, upgrade at any time and the unused credit from your current subscription will be applied to the cost of your amended subscription. Likewise, you can downgrade an active subscription. Unused credit remains in your account and is applied to future subscription payments.

If you have canceled your subscription, you cannot upgrade. You will need to purchase a new subscription. No credit from a canceled subscription can be applied to a new subscription.