123 15 complained that the developer did not apply for the real estate license.

The complaint method is: local telephone area code+123 15. If it is local media, you can directly call 123 15 to complain.

Or 123 15 complaints can be completed on Baidu APP. Users can download Baidu APP, search for 123 15 to report complaints, and the applet 123 15 will appear. You can fill in the complaint report after entering the small program. The steps are as follows:

1. First, the user opens Baidu APP.

2. Search for 123 15 complaints and reports in the search bar.

3. Find the code sequence of 12 13 15, and click Complain Now.

4. There are two choices, you can choose to complain or report.

5. After clicking, a notice will appear. Click Agree.

6. You can enter the unit to complain and report.

Legal analysis: the developer does not complain to the construction administrative department and the real estate administrative department of the people's government of the municipality directly under the central government, city or county for handling the real estate license. Property ownership certificate is a certificate that buyers can obtain the legal ownership of houses through transactions and exercise the rights of possession, use, income and disposal of purchased houses according to law.

Legal basis: Article 63 of the Urban Real Estate Management Law. If the people's governments of provinces, autonomous regions and municipalities directly under the Central Government determine that a department of the people's government at or above the county level is in charge of real estate management and land management, a unified real estate ownership certificate may be made and issued. According to the provisions of Article 61 of this Law, the confirmation and change of the ownership of the house and the land use right within the scope of the house occupation shall be recorded in the real estate ownership certificate respectively.