If your refund was taken due to a debt that you aren't responsible, and you aren't in a community property state, then under most circumstances you can file IRS form 8379 to recover your owed portion of the refund. Since you didn't file it electronically with your return, you'll need to physically mail the form in.
Since you have already filed with Turbo Tax, you will need to file an amended return that includes a 8379. here is how to file an amended return.
Now before you finish and if you are in your amended return, here is how to access the 8379, injured spouse form.
Here is how to file your injured spouse form on Turbo Tax.
Now you should be ready to amend your return. Go to:
edited 04/14 6;46 PM Pacific Standard time
Dave, if I'm understanding correctly, he/she can't file WITH their tax return at this point, they are asking where their refund is (as in, they already filed and it was taken). Therefore, they can't file it electronically through your service; they'll need to either obtain a copy of the form, or print it out and physically send it in to the service center in their area.
Ref: https://www.irs.gov/instructions/i8379
Their only other option that would allow them to actually send it in electronically at this point would be a 1040-X, but there's no need to amend the original return if they are only filing Injured Spouse.