It is normal to charge assessment fees. His main function is to estimate the actual price of your house. Generally, appraisal institutions with appraisal qualifications issue appraisal reports, and generally have invoices. If you get nothing, there are two possibilities. One is that the appraisal fee they charge is higher than that of the appraisal company, and they can't make up the invoice of the appraisal company for you. Second, the official invoice may not be given to you until you issue a formal evaluation report. At first glance, it seems to be only a pre-assessment report. You can ask the specific department.