Nuendo 5.5 activation code issue resolved

hi sir, i have just installed the N5+NEK into my mac OS from the upgrade box set, it runs smooth in N5 but no control with the euphonix mc contorller, the i download the 5.5 update dmg and try to install but is says that “No License to upgrade selectable…No licsense to upgrade found.Pls connect a USB-eLicenser which contains an appropriate license to upgrade to your computer…!!”
BUt i have already activate my account in the USB-eLincenser for N5 and the NEK and can be seen in the e-Licenser USB…but why i can’t find N5.5 activation code ? How can I get the code of 5.5 and the NEK 5.5? I need to pay extra money to get this or what? If I don’t pay for 5.5, that means that I can only use 5.0 for it? Pls help…I am stuck here right now…using a N5 with no euphonix MC controller connect…Thank you so much for your help!

Best regard
Hary