This is not something that you should be trying to do on your own, nor can you fault the judge for approving an agreement which appeared to be valid on it's face. If the parties knowingly and voluntarily entered into the agreement, the Judge would be in the right to approve it, unless he/she had good cause not to do so. Also, unless you had become a IV-D client of the DOR, or were receiving public assistance benefits, there would have been no reason for the case to go through DOR. The payments themselves should still have gone through the State Disbursement Unit (SDU) unless the two of you agreed otherwise - but even that could be changed via Motion, and you could always become a IV-D client of DOR and they would do a Motion to Redirect Payments.
If the facts you've asserted are true then you may be able to file a Motion for Relief from Judgment pursuant to Florida Family Law Rule of Procedure 12.540 and Florida Rule of Civil Procedure 1.540, but there are certain things that must be plead & shown to obtain relief - so you should seek a consultation with an experienced Family Law attorney in the county where your action is pending to help you with your case.
The answer provided is a general answer to a general question - and should NOT be construed as my giving specific legal advice, nor does it create any attorney/client relationship or expectation of privilege - and should you have specific questions you seek to address, then I encourage you to seek a consultation with an experienced Family Law Attorney in your area who may discuss your case with you and give you specific advice to assist you.
You need to set a motion for a hearing, the judge will not do anything unless you, or an attorney that you retain, pushes the matter forward. You should really consult with an attorney as soon as possible, you may need to file a supplemental petition for modification. Best of luck.
This answer is for general informational purposes only and should not be relied upon for your particular case nor is it intended as legal advice. I have not reviewed your case nor have I met with you and the answer to this question does not in any manner whatsoever establish an attorney/client relationship.
Set your motion for a hearing. Call your case manager and get the matter set.
Legal disclaimer: Ms. Braaten's answer to your question does not establish an attorney client relationship, but rather is meant to share knowledge with the general public. For specific advise on your case, you need to consult one on one with an family law attorney.
What you need to do is move to set aside the fj based upon fraud and overreaching, perhaps coercion. You cannot do this yourself, you need to retain an attorney in the county where the divorce was.
R. Jason de Groot, Esq.,