Beyond the subject line, the email says “Check the Sonos app for an exclusive offer.“
I opened the app and no offers were visible. I then went to the Settings page of the app and clicked on “Inbox & More -- Messages and special offers” and there is nothing there.
This is the problem with being so coy in the email -- I don’t even know if I should care that this isn’t working for me, because I don’t know what the offer is.
Answered
received email stating "You’re going to want to open the Sonos app today" -- did so and found nothing
Best answer by GuitarSuperstar
Close and re-open the Sonos app. You’ll see a pop-up ad for the Roam SL:
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I wonder if it’s the same offer I had the other day, that said I could purchase a new Sonos Arc complete home theatre surround sound system with two Subs for just $1.00 ..?
…and just as I received it, the Wife shook me awake and said I had to get up and go out to work. 
ha ha
edit: My Sonos profile is flagged to receive all offers/emails etc; but nothing received here either (so far).
Same experience here. I just went to the Sonos website and saw where the Roam SL was released.
Close and re-open the Sonos app. You’ll see a pop-up ad for the Roam SL:
Hmmm 
That didn’t work for me at 8am-CST nor now at 8:49pm-CST.
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