How to inquire about the business department where my stock account is opened?

How to inquire about the stock account opening business department? You can check the sales department of its securities account in the following ways: 1, call official website customer service, a securities company; It should be noted that during the inquiry process, the customer service staff will need investors to provide their ID numbers and securities account numbers to ensure that they are themselves. 2. Go to the business department of a nearby securities company to open an account; Investors need to carry valid identity documents when they go to the business department for inquiries, and it is best to make inquiries during stock trading. 3. Inquire through the account manager; If the investor has the contact information of the customer service manager of other business departments of the securities company, he can send his own ID number and name, and he will help the investor to inquire about the business department to which his securities account belongs.