Since your return has been accepted, you would have to cancel your direct debit, then you can pay your taxes owed on the IRS website, or mail a check when you are ready.
Federal Tax direct debit payments can be canceled up to 48 hours (midnight, Eastern time) before the date you designated the funds to be debited. To cancel your direct debit transaction, call IRS e-file Payment Services at 1-888-353-4537 or contact your state tax agency, as appropriate.
You can make your payment when ready on the IRS website by direct debit, credit card, or direct pay.
https://www.irs.gov/payments/pay-taxes-by-electronic-funds-withdrawal#errors
Or, as stated above you can pay by check. You will need the Federal payment voucher 1040-V to mail with your check.
Since your return has been accepted, you would have to cancel your direct debit, then you can pay your taxes owed on the IRS website, or mail a check when you are ready.
Federal Tax direct debit payments can be canceled up to 48 hours (midnight, Eastern time) before the date you designated the funds to be debited. To cancel your direct debit transaction, call IRS e-file Payment Services at 1-888-353-4537 or contact your state tax agency, as appropriate.
You can make your payment when ready on the IRS website by direct debit, credit card, or direct pay.
https://www.irs.gov/payments/pay-taxes-by-electronic-funds-withdrawal#errors
Or, as stated above you can pay by check. You will need the Federal payment voucher 1040-V to mail with your check.