i am trying to buy the upgrade for gpo4. it asks me for a 'valid kontakt serial number'. please can someone tell me where do i find this and what is the correct format for it. i have tried the 12345-12345-12345-12345-12345 number from my kp2 update, copying and pasting it in, but was told this wasn't valid!
to clarify - im just trying to put the upgrade in my shopping basket, iv not managed to download it yet.