2. If it is not compulsory voluntarily, then charging is illegal and violates the labor law. It is not only a violation of discipline, but also an illegal act.

Article 9 of the Labor Contract Law stipulates: "The employing unit shall not detain the employee's resident identity card and other documents, and shall not require the employee to provide a guarantee or charge the employee fees in other names." Article 84 stipulates: "..... if an employer, in violation of the provisions of this Law, collects property from laborers by way of guarantee or other names, the labor administrative department shall order it to be returned to the laborers within a time limit and impose a fine of not less than 500 yuan but not more than 2,000 yuan per person; If it causes damage to workers, it shall be liable for compensation. If the employee dissolves or terminates the labor contract according to law, and the employer detains the employee's files or other articles, it shall be punished in accordance with the provisions of the preceding paragraph. "