ILR (thankfully) - as you know - is more or less a formality when compared with its forerunner, Rayna. That said, you are very wise in applying through a PEO for the sake of getting everything attended to within a couple of hours ... and, as I keep telling others, you'll find it's money well spent - laying aside the rather oblique "confirmatory" email message you've just been sent.

Here's wishing you all the very best in advance of the date you're allocated.