More likely they denied the stimulus credit on line 30 of the form 1040 ... if you already got it in advance you cannot also have it as a credit ... this section of the program was completed incorrectly by many users.
If the IRS has reduced your refund, they will be sending you a communication explaining why they reduced the amount of your refund. Once you know the nature of the problem, you may be able to correct the problem by amending your 2021 Federal tax return.
If you did not receive $1,400 for the third stimulus payment, the IRS may think that you were already issued the third stimulus payment.
At your IRS online account, you can find whether a payment was issued to you that you did not receive. You can also find this information on your tax transcript.
If you need to trace a payment that the IRS says has been issued to you, mail or fax a completed IRS Form 3911, Taxpayer Statement Regarding Refund.
