My Federal Tax Return Was Accepted. I Chose Direct Debit to Pay My Taxes. The Taxes Have Not Been Withdrawn. Why?

Hello, I chose to pay my federal taxes with direct debit. My federal tax return was accepted. Yet the funds have not been withdrawn by the IRS, two weeks after the return was accepted. I have been unable to contact a Turbotax specialist to confirm that I chose direct debit. What can I do? Extremely irritated customer.