1. First, notify the project department in writing to clearly express your concerns and needs. Because of misunderstanding or communication problems, written notice can ensure that your information is conveyed accurately.
2. Secondly, try to contact the superior department or the person in charge of the project department to inquire about the situation and express their concerns. Because they have more information and resources to help you solve the problem.
Finally, if the above measures can't solve the problem, you can consider looking for other partners or seeking legal help.