Please follow these steps:
1. Go to https://secure.2co.com/myaccount/ and either register your account or log in (you need the reference number as well as the email address that was used during the pre-authorization process)
2. Once logged in, check the order details of your trial product:
3. In the order details, click on product history:
4. In the product history, click renew now to upgrade to the full version:
5. A window will open in your default browser where you need to enter your payment details and submit an order for the renewal. The trial version will be deactivated automatically and a serial number will be sent to your email address.