To add to what conxtel said..........

Do your upgrading BEFORE getting the keycode.
You will buy an Authorization code.
That Auth code needs translated to a keycode using your system ID.

If something happens as conxtel said, your system ID will change.
If you have not converted the AUTH code yet, then you can use the new ID to convert and saved yourself money.


If CON is the opposite of PRO
Then what is the opposite of Progress?