The email should arrive in a couple of minutes. If you haven't received it, check your Spam folder.
Some email addresses such as @hotmail.com may not receive the emails from our license server. We strongly recommend using a different email if this is the case.
Check if a firewall is blocking the communication between your computer and our license server, and whitelist wysilab.com.
If still blocked, please contact us at firstname.lastname@example.org.
When you register Instant Terra, you must enter your license key in the dialog.
Enter the entire license key enclosed between both "=======" lines.