What should I do if my GM MasterCard is lost or stolen?

If a customer loses their GM MasterCard or believes it has been stolen, it is important to take immediate action to protect their account. First, the customer should look for any transactions that may have been made using the card. It is crucial to report the loss or theft as soon as possible. The customer can typically do this by visiting the official website for the GM MasterCard. There they may find detailed instructions on how to report a lost or stolen card, including a customer service number for assistance. Additionally, it is advisable for the customer to monitor their account statements regularly for any unauthorized transactions and to change any related online passwords. Once the card has been reported, the customer may receive instructions on how to obtain a replacement card, as well as information about any potential liability for unauthorized charges. For the most accurate and up-to-date details, customers should refer to the official website or consult the appropriate resources provided there.