Problem With Discount Code

When trying to purchase addition Licences with the discount code given in the recent email I got a message "Discount Code is invalid". As I cut and pasted the discount code from the email to the webpage, I know there is no mistyping.

What's the go?

regards

SeaCay

Make sure you add license from gpsoft.com.au/DScripts/licencemanager.asp Not from buy new license page. This discount code only valid for add additional license.

I try to add code from gpsoft.com.au/DScripts/order.asp and it's says The promotional/discount code you have provided is invalid.