In this particular issue, you are right. Contact support and yell them you need a key even before shopping. Send the file now. Not saying it's right but the best way to do it smoothly.
And you guys are sick of this, but a full mate metal macrium backup would mean you would have to reinstall all of your programs. Just install macrium, use your activation key or call for a new one, reboot, restore the full backup from the BIOS. Done.
But just options You are still correct.