@Humbird - while you think you did not receive the $1400, the IRS records are they sent it to you.
1) go back and review your bank statements closely for the period of March - May, 2021. See if there is a $1400 deposit. If yes, you got the stimulus payment then the IRS adjustment is correct.
2) if you do not find the $1400 deposit, then call 800-829-1954 and complete the automated system prompts so that the IRS can track down what happened to the payment. It'll probably take a few weeks for them to respond.
https://www.irs.gov/faqs/irs-procedures/refund-inquiries/refund-inquiries-0
that is all that needs to happen. Make sense?
