If you are not satisfied, you can go to court to sue yourself.
Judicial interpretation of criminal procedure law
Article 1 Private prosecution cases directly accepted by the people's courts include:
(a) inform the handling situation:
(two) the people's procuratorate did not initiate a public prosecution, and the victim has evidence to prove a minor criminal case:
4. Bigamy case (stipulated in Article 258 of the Criminal Law);