You can follow the steps on this page : http://www.extendware.com/howto-renew-yearly-plan/

Here's a Shortened Version

If you selected the Value Plan with 1 year support, extension upgrades, and 1 year access term when you ordered the extension, then you need to renew the plan to continue using the extension

If you ordered the Lifetime Plan with the 3 months upgrades, 3 months of support, and unlimited access to the extension software, then you do NOT need to renew. (Although you can add a new plan if you need ongoing support or extension updates. To do so, please follow the steps below to upgrade your plan) 

If you would like to renew your plan for another year and receive another year of support / upgrades / access. You will receive a 25% discount when doing this if you follow these instructions:

  1. Go to your Account Center
  2. Click Software Downloads in the left navigation column
  3. Click on the installation where the software is assigned
  4. On this page you will see a red notice with any extensions thats plans are expiring soon
  5. Click the renew plan link on each extension to renew the plan:

 

Note: Please contact our friendly support team if you experience any difficulties or have any questions / concerns then

Viewing The Plan You Selected When Purchasing Extension

You can view your invoices or Paypal statement to see the terms you selected when you ordered the extensions.

If you ordered the Value Plan with 1 year support, 1 year of upgrades, and 1 year of extension access or are using trial software, then you will need to renew the plan to continue with the extension. 

If you ordered the Lifetime Plan with 3 month support, 3 month window of upgrades, and unlimited access plan to the extension, you only need to renew if you want access to support or upgrades.

*Important * Update Extensions After Purchase

After purchasing the plan, then please wait one hour and then follow these steps:

  1. In your store backend go to Extendware -> Manage Extensions -> Overview
  2. Find the software in the list of software installed and click it.
  3. Click Update Licenses and Serials.
  4. That should update your new license and you are ready to go!