Return rejected because I sent a prior return through another site

Hi,

My federal and state returns were rejected with the error code 

Reject Code R0000-932-02
This is because I had originally sent in my federal return through Free 1040 Tax Return.  Tax laws had changed so I sent it again with the state return from TurboTax, using the Deluxe program.  I was advised I needed to change the form of payment for the federal form and mail it.
I can't find the way to change the form of payment and want to know if I have to mail both returns now, or just the federal that I sent in twice?