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The contents of this answer should be considered friendly advice, not legal advice (I'm a pretty friendly guy), and the answer should not be construed to constitute an attorney-client relationship. Also, if you liked this answer as much as my big ego thinks you did, be sure to click the thumbs-up button!
Based on the limited information you provided it seems as though you need to file a formal objection to the Petition to Relocate as well as a Supplemental Petition to Modify Child Support. If there has been a substantial change in circumstances since the child support was last ordered, then you may be able to have it modified.
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