If we have a mobile phone number on file for you, we'll send a text alert first. If we do not receive a response, our system sends an automated voice call asking you to confirm if authorizations are valid or unrecognized. If you select “Not Recognized,” the call is transferred to an agent to confirm the fraudulent transaction(s). If there is no response to the text or voice call, an email is sent requesting that you confirm the transactions are valid.