Set the"Interface" as VPN, VPN Type as L2TP over IPSec and type Service Name: VPN Discount L2TP. Then click on "Create".
Enter Server Address (depends on which server do you wish to connect to, server list is in your mailbox - welcome email). Enter your VPN Discount Account username (your email). Then click on the "Authentication Settings" button.
Choose "Password option" and type your VPN Discount Account Password. Choose "Shared Secret" and enter secret code which you can see on the image below. Then click on "OK".
Click on "Advanced...".
Enable "Send all traffic over VPN connection". and click "OK".