There are a few reasons why these cards might not work.

1. Most likely the strip on the back has been demagnetized and a new card needs to be ordered.
2. Another problem is that there may not be enough funds available in the account or a deposit was made recently and the card has not been updated.
3. If this is a new card, you need to call 1-800-894-1200 or (626) 792-7441 and get it activated before you can use the card.

If you feel the problem may be either the first or second answer above, please contact us.