1. Online inquiry: You can find the contact information or personnel information of relevant departments through Zhengding Taxation Bureau official website or other relevant government websites. Information such as the contact telephone number, e-mail address or office address of the relevant department is usually provided on the website of the institution.

2. Telephone consultation: You can call the switchboard of Zhengding Taxation Bureau and ask the staff about the person in charge of the film. They may provide relevant contact information or transfer you to the person in charge of the area.

3. Go in person: You can go to the office address where Zhengding Taxation Bureau is located in person, and directly ask the staff for the personnel information responsible for the film. They may provide you with relevant contact information, or directly guide you to communicate with the person in charge of the area.