If you believe your card has been lost or stolen, you must do 2 things immediately: (i) freeze your card in the Wallet to prevent unauthorized use and (ii) contact Customer Service IMMEDIATELY by calling 1-800-325-6000, by mail at P.O. Box 6036, Englewood, CO 80155, or by visiting www.westernunion.com.  

To freeze your card: 

  1. Log into the Wallet app.
  2. Tap the wallet icon at the bottom of the screen.
  3. Tap Card.
  4. Tap Freeze Card.
  5. Tap Freeze to confirm the action.