When you filed the return, in the file tab step 2, you have the option to set up a direct debit from your bank account. If you set that direct debit up then the IRS is trying to take the money you told them to take. They did not realize that you paid online directly to them. This was not an error by TurboTax because you're the one that set up that option. The feds will not try to attempt to debit the account a second time and since the balance due has been paid that will be the end of it from their end. Save a PDF of your return and take a look at what you did so you know what not to do again next year.
