After you file

Sorry but the program only does what you ask it to do so in the FILE tab step 2 you must have indicated that you wanted the IRS to debit the payment which is what they did.  You were not to also mail in a payment.  This is a user error not a  program flaw.   Log back in, scroll down and click on ADD A STATE to see the choice you made in the FILE tab  and/or  look at the filing instruction page for the same information.