Did you receive an automated reply to your support mail? If not, your message may have been caught in a spam filter. Likewise, check that messages from support have not been caught in a spam filter on your end.

That aside, have you registered the game? You need to have registered the serial to your email address (the one you used for your forum account) in order to activate. If you haven't registered, you can do so using the 'Register' link at the bottom of this page.

If you have registered, make sure you're using the correct serial. It should be 28 characters long containing only 0-9 and A-F, no dashes or other letters. If you are using a serial that begins with GC2-, check the packaging for another one. The GC2- serials are only for enabling extra content. If you do not have a serial at all that meets the aforementioned format, then you will need to get ahold of support to proceed further.

so your serial does meet all the requirements kryo mentioned above? and when you input it into the proper box following the "register" link below you get an error that it is not a legit code? you are inputing it without dashes and without spaces, right?

weird

have you tried to download the update/register through stardock central? I wonder if that might work for some odd reason when it doesn't elsewhere. Kryo, any other ideas?

i have bought my copy of GC2 second hand - the registration failed with the message: Error 3: Serial Number Is Not Registered To This Account how can i unregister any further owner of my serial ???

Sorry, but second-hand copies cannot be re-registered to a new owner. The serial is permanently bound to the first account it is registered to, so unless the original owner hands over the account, there is nothing that that can be done about it. If you would like you can purchase your own serial at reduced cost. If you'd like to know more about this, contact [email protected].