If you feel you did not get a fair chance to present evidence you can file a Notice of Rehearing within ten days of the order. You should have also gotten an opportunity to review the documents your ex submitted.
I agree you should have seen the evidence that he was presenting. Did you ask for a copy? Did you present evidence of his bills and lifestyle? You should talk to an attorney and see if there are legitimate grounds for a rehearing. Remember, that a motion for rehearing doesn't entitle you to a second bite of the apple.
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.
I agree that a Notice of Rehearing is all you can do short of an appeal.
This information is a general answer and is not specific to any particular case. Carin Manders Constantine, Esq. 727-456-0032/ 727-488-8272 familylawyer411.com/about-carin https://www.facebook.com/pages/The-Law-Offices-of-Carin-M-Constantine/125967577416313 http://www.linkedin.com/pub/carin-constantine/b/861/445
You should file a motion for rehearing within ten days of the ruling by the Judge. You certainly were entitled to receive, review and address any documentation the court utilized or relied upon to render any ruling. Under the facts you provided it seems as if the Court did not consider or give weight to the evidence of your ex expenses or lifestyle to address if a downward modification was justified. You should try to address this matter with a family law attorney.