@ GERR also wrote: "I tried to confirm PIN on IRS.com but was instead lead to get an 6 digit IP PIN."
I don't know what "IRS.com" is. The official IRS website is IRS.gov .
In any case, see the long answer I left you above about your rejection error issue. Without knowing the original rejection error code, I'd be suspicious you may have ended up with an IP PIN by mistake, but now you do have to use it.
