*Card registration required. Certain restrictions apply. Contact the issuer of your card immediately to report your lost or stolen card. You can use the customer service toll-free number listed on the back of the card. Be sure to keep a record of the Mastercard card number. Your issuer may need this information to cancel the card and issue a replacement. You can also contact Emergency Services for additional assistance. In the event your card is lost or stolen, your card issuer will not hold you responsible for unauthorized purchases made on your card.