Q: I have an outstanding child support arrearage owed to me that child support enforcement has always handled for me.
A: It is common practice for the government to take priority for TANF payments when back child support is paid. If you feel this was an error and/or you want to pursue civil collections against your ex I suggest that you hire a lawyer. There are also some pro bono resources which may be available: http://www.intotolegal.com/upcoming%20Events/Pro%20Bono%20Services.html .