Sandy knows that... the question is, what is it from? It matters if it is from Coke packages, the Subway promotion, or the McDonald's Monopoly game going on.
...does "one of those card things" mean it's from a Monopoly piece? Some special codes have redemption limits, like with the Subway ones. Those are 1 per account, so it's really important that you list the exact source the points are from.