How to upgrade your license
If you purchased a Single Site license or a 2-5 Site license and would like to upgrade to a larger license option, as long as your license hasn't expired, you can upgrade by simply paying the difference. To do this, follow these steps:
1. Log in to your account at pluginize.com
2. Click the My Account link in the top menu
3. The My Account page will show you your purchase history. Click the View Licenses button next to your purchase.
4. On the View Licenses page, click the View Upgrades button next to the product you wish to upgrade.
5. On the View Upgrades page, click the Upgrade License link next to the appropriate option. You'll notice that the original purchase price has been deducted and the upgrade cost is the difference between your original purchase price and the full price for the remaining license options.
6. Complete the checkout process and you're all set!