The first punch cards they used at the DCC childcare didn't expire, but when they adjusted the pricing they adjusted the way the cards could be used, too, I believe.

At least you got a notice in the mail! I lost some daycare time last year and had no idea it was expiring until I went for one last class and they said, "Oh by the way you have three days to use 5 hours of daycare." Huh.

And, yes, I have seen people donate their childcare punchcards to someone else. They arranged it through the daycare ladies.