A valid support contract is required to receive support from Digium, and renewing or adding support or subscriptions is an easy process. Simply navigate to the below address and enter your registration code. You will need to log into your Digium account to complete the order:
https://my.digium.com/en/forms/switchvox/subscription_status/
With this method the order can be completed and codes received withing just a few minutes.
Note: This is only for end users. Resellers will still need to contact their distributor for license codes.