The publisher is the one that wants the DRM.
Anyways, when ever I had to call to get activation back for a game, it was always a quick phone call, they would just ask me for some code that the game is showing me, and they would give me a code back to put in the game. They didn't ask me any questions or ask for any proof, they just asked for the code I am seeing on the screen.
Another thing to keep in mind as well. If you are going to make a major hardware change, uninstall using the game uninstaller first, cause that gives you an activation back. If you format your computer and reinstall everything, but it is the same computer, reactivating the game does not take an activation away. The activations are tied to your hardware. For my past games, changing the Motherboard is a major change, but just changing the CPU or the Graphics card was not considered a major change, but changing out both the Graphics card and the CPU would be considered a major change.
