It may take the IRS a couple days to take the payment.
Was your efile Accepted? When you efile you get back 2 emails. The first email only confirms the transmission. The second email says if the IRS (or state) Accepted or Rejected your efile. Check back though your emails and spam/junk folder.
When you log into your account you should also see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc. What does it say?
And there should already be penalties if you didn't pay the tax due by April 15. Do you have a penalty on 1040 line 38?
