1. First login to your Client Area.
(Client Area login details can be found in the email with the subject line "MacHighway Client Area Log In Details")
2. Once you're logged into the Client Area, click Services > My Services.
3. Click the View Details button of the product you wish to upgrade or downgrade.
4. Click the Management Actions tab then Upgrade/Downgrade.
5. Locate the package you want to upgrade/downgrade your current package to on the resulting page, then click Choose Product.
NOTE: Be sure NOT TO CHANGE your billing cycle. If you are currently on a monthly package, make sure to choose a monthly package on your upgrade/downgrade. If you are currently on a yearly package, make sure to choose a yearly package on your upgrade/downgrade. Etc.
6. Press Click To Conitinue >> on the resulting page to complete the upgrade.