The IRS has the information as to how much they paid for stimulus and advance child tax credit.
If you did not enter the correct amount then IRS will give you less refund after accounting for the correct amount paid.
As @VolvoGirl mentioned you should check your bank account to check the actual amount of credit received by you.
You request a payment trace to track your payment if a payment was issued to you and you have not received it.
To start a payment trace:
- Call IRS at 800-919-9835
- Mail or fax a completed Form 3911 and write the Third stimulus on top of the form
