After you file

It's now been 42 days and the payment has still not been debited from my account and I have now received an IRS notice with penalties showing that they have not received the payment.  I have no proof of payment from either the IRS or Turbotax since Turbotax only sent confirmation that the extension I filed with them online was accepted.  They make no mention of the payment and I did not get any confirmation number.  I entered all the banking info and scheduled the payment for three days later when I filed the extension online.  Now no one - the IRS, Turbotax or myself - has a record of anything.  Am I just screwed here?  So frustrating.  Thanks for the headache and lack of support Turbotax.