MasterCard's customer service center or legal department submits a written application. According to the relevant policies of MasterCard, if the judicial organ needs to obtain the transaction details of MasterCard, it shall submit a written application to the MasterCard Customer Service Center or the Legal Department, and provide relevant legal documents and supporting materials. These materials usually include investigation letters, subpoenas, court decisions or other legal documents. MasterCard's customer service center or legal department will review the application according to relevant laws, regulations and company policies, and provide relevant transaction records and other materials if they are qualified. Different judicial organs, countries and regions may have different specific transfer procedures and requirements. It is recommended that you know the relevant local laws, regulations and procedures before the transfer.