I just found out today that my child support case was closed on the father because the case worker to me he.?

The lesson here is: Read your mail in a timely manner so you can respond in a timely manner. Welcome to (part of) the legal system - they don't mess around and they've heard all the excuses (misplaced, not received, dog ate, house burned down). Oh well. You made this child with this loser (I can't imagine he was that much better when you were together) and now you have to live with it. Even if it wasn't like this - how did you plan to raise that child in case her father had died? Get educated, get a job, get a better job, get two jobs - do whatever it takes to raise that child because her birth father obviously isn't going to do it.