activation code for usb elicense

I have a USB elicense for Cubase 6 and try to install it (update cubase 6.5) on a new computer (mac snow leopard). Using the elicenser control and the activation code present on my steinberg. i receive the message : code already used (a code can onely be used once???)contact your retailer. What can i do?

If you are using an usb key there is no need to do another activation. Install elicenser software on your new computer, plug the key and you are done.