According to what you told us, it can be concluded that the woman's cheating is illegal. You can go to court to sue the woman for returning the bride price and compensate for the losses.

There is no legal basis for not suing the woman's parents If the woman has full capacity for civil conduct, she should bear the legal consequences (but if you have direct evidence to prove that her parents colluded with her to cheat on marriage, you can appeal with her parents as the defendant).

You can submit an appeal directly to the court. If you can't find the woman temporarily, just write down her exact contact address. After the court accepts the case, if the defendant (or plaintiff) cannot be found, it will post an announcement of the court session. If one party still fails to show up 60 days after the announcement is posted, the court may try the case by default, and the judgment still has legal effect on the absentee.