You can argue that the above behavior is harassment from your ex. You could file a Rule to Show Cause against your ex and describe to the court what actions he is taking against you. If your situation financially has changed since the Final Judgment you should also consider Modifying Child Support. The Child Support is for the children and is to assist you in raising them. If your ex's salary has increased since the Final Judgment you can address that as well.
For a FREE consultation contact The Divorce Center at 800-469-3486.