Check the customers record to see if they still have a balance outstanding.
Connect to customer's server machine.
Copy over the Tech Utility to the customer desktop
Open the Tech Utility
Go to Local Dongle tab
Click the Check Key button at the bottom left
Set the level to newly authorized level (Platinum, or Gold)
Ensure the Permanent checkbox is checked
Click the Initialize Key button at bottom right
Close the Tech Utility
Permanently deleted the Tech Utility off the customer's computer (NOTE: THIS IS CRITICAL)