I signed up for a payment plan to take care of my remaining taxes owed. I got a letter from the IRS confirming that my plan was accepted, and that money would be deducted from my bank account on a monthly basis.
However, there was also a form in the envelope that said: "Please mail your payment at least 10 days before your payment due date of July 20, 2018". Why is mailing being brought up if I signed up for automatic deductions? Should I get in touch with the IRS or just wait for it to come out of my bank account?