Tax Payment

I filed through eFile with my payment to my taxes. I received an email from TurboTax that it was succesfully filed,  received and accepted by IRS (i.e. via two separate emails). My tax payment was supposedly debited from my checking account on April 9th. To date IRS has not debited my checking account for my payment. I am somewhat concerned because April 15th is around the corner. Any thoughts please. Thanks.