Without income there is nothing from which to provide you with a refund. Tax refunds come from having tax withheld from earnings or other sources of income. It sounds like you are asking about the interest on a student loan. You do not get a refund for that. The student loan interest paid reduces the amount of income you pay tax on. You say you had no income--there is nothing to reduce.
Did you truly have no income--or you just did not have income from working? Did you have investment income, Social Security, retirement income, etc. from which tax was withheld?
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**