When will the amount we owe be withdrawn?

We are expecting our federal taxes to be a one time payment.  Our return was accepted weeks ago but the funds have not yet been withdrawn from our account. On the printed TT federal form, it is showing 4 voucher payments with due dates way out in the future.  I thought we submitted the return to have the all of it withdrawn from our bank.  One of the vouchers even shows a due date of yesterday.  It is very confusing. I do not see our bank routing info on our fed return although I entered in TT.  I am hoping I didnt make a mistake.  I need to know if we have a problem.