When filing my 2018 taxes I asked what I can do if I know who fraudgulantly claimed my dependent, tt gave me a form Do i need to fill and fax it before I can get a refund

When filing my 2018 taxes with turbotax,  I told them that I found out who claimed my dependent for 2017 taxes. In with the tax forms I had to mail off, there is a form that needs to be mailed to a different address .Do I need to fill out the identity theft form before I can receive my federal refund?