something does not make sense. Is your issue the Recovery Rebate Credit or the Advance Child Tax Credit? (your question states the RRC but the FAQ is about the child tax credit, leaving me confused).
Both required you to enter how much you already received. if you did not enter the amounts already received, the refund would be inflated
What is on line 30 of your tax return?
What is on Line 28?
What is on Line 11?
if you received the 3rd stimulus (around March - May, 2021) and did not enter that into TT when prompted, it would cause Line 30 to be incorrect.
If you received the advance child tax credit from July to December, 2021 and did not enter that into TT when promoted, it would cause Line 28 to be incorrect.
