Mail a check

Or make an electronic payment online.

And ya' might want to let the poor unsuspecting soul that's going to have his/her bank account dinged that there was an 'oops'.... IF you know who that account belongs to.

You can inquire about or cancel an IRS Electronic Funds Withdrawal using the phone number found in the last paragraph here...Id call and cancel the incorrect payment and make other payment arrangements.

https://www.irs.gov/payments/pay-taxes-by-electronic-funds-withdrawal