Not sure it can be reversed but you can contact the Treasury Offset program for help.
Have Questions about an Offset? Toll Free: 800-304-3107
See the following for more information:
https://fiscal.treasury.gov/fsservices/gov/debtColl/dms/top/debt_top.htm-----------------------------------
If you filed a joint return and you're not responsible for your spouse's debt, you're entitled to request your portion of the refund back from the IRS. You may file a claim for this amount by filing Form 8379 (PDF), Injured Spouse Allocation.
You may file Form 8379 in any of the following ways:
- With your original joint tax return ( Form 1040 (PDF), Form 1040A (PDF), or Form 1040EZ (PDF)),
- With your amended joint tax return ( Form 1040X (PDF)), or
- By itself after you receive notification of an offset.
When filing a Form 8379 with your joint return by mail or with an amended return, write "Injured Spouse" in the top left corner of the first page of the joint return.
https://www.irs.gov/taxtopics/tc203.html
