What should a cardholder do if they lose their GPC?

The best course of action for a cardholder who loses their Government Purchase Card (GPC) is to report the loss to the issuing bank. This prompt action is crucial because it helps prevent unauthorized use of the card and protects both the cardholder and the agency from potential financial loss. Notifying the issuing bank allows them to block the card, preventing any further transactions until the card is recovered or a replacement is issued.

While notifying a supervisor is an important step, it is generally secondary to reporting the loss to the bank because the immediate concern is to stop any misuse. Waiting to see if the card is returned poses a risk of fraud, and while blocking the card's use might seem practical, it typically requires the bank to take action. Therefore, reporting to the bank is the most direct and effective response.