Be aware that there are fraudulent calls that purport to be from MasterCard or local financial institutions informing the receiver that their MasterCard has been deactivated or locked. The caller asks for personal information (such as social security or card number) to reactivate the card. These calls are scams. If you receive such a call, simply hang up. If you have provided personal information, please call the bank at 800-326-9486 to report the incident. If after hours and you provided your card number, please call the 800# number on the back of your card.