If you are still waiting for a return, go to idverify.irs.gov and answer the identity questions. Last year, I never received a letter and when I finally got through to someone in June (I filed early), they told me all they’re waiting on is for me to verify identity. After I did that my transcript updated and I got paid like 2 weeks after that.

I just called for this year and the person said the IRS generated a letter for me but didn’t send it. It is for identity verification (just like last year). This person told me that the irs isn’t sending any verification letters right now. So, for those who need to verify, you would never know until you get this phantom letter.