Dear Ethel,

I have so many things to say about your response. But first of all, it's tone deaf.
And that ANYONE would write that 
"Don't worry if you get a notification""from the IRS"

Is disconnected from what happens in the real world of business.
Your answer is also flippant - "Let me share some insights"
After 20 years of using QB, I know it better than most.

For others reading this post, This is not what has happened.
I have been paying payroll taxes for 20 years now and duplicate payments and filings are difficult to do, if not impossible to do within Quickbooks. In fact, I have no idea how you could even do it.
(The aforementioned call, with tech support for 2+ hours was because we COULD NOT refile online.)

Intuit does not have a modern interface and does not actually make things easier. With each update, I find it less and less suitable for a small business and find that it actually works against easy-to-use functionality.
I don't know how they manage to do it, but I'm not surprised at this point.

I will be talking to the IRS tomorrow and wasting time that I should bill to Intuit. 
If the system doesn't help prevent errors and actually causes errors, then that is a flaw. A critical one at that.

I'll let you know what happens, but I'm pretty sure it's going to be to pay a penalty because the payments were not received. 

Sepp.