You can only use your 2nd-Chance Scratchee token on selected games. It is really easy to find which games it can be used on.
Simply look for the 2nd-Chance token shown with each game on the “Promotions” page. If it has the token showing, then you can claim it with that game. If it does not have the token, then you cannot play a 2nd-Chance with this game.
An example is shown in the screenshot below:
