Deductions & credits

Hello,  Thank you for the response.  I had 1800. for the line 30 rebate.  All stimulus's received.  My calculations are exactly what I see in the amended IRS calculations...which is why I'm so confused.  I have tried (and failed) to get through to IRS...I will persist!  The notice references amount computed incorrectly (683D), but I have yet to locate what (683D) entails.  I have clicked ALL the IRS tabs.  I'm about to start day drinking...😬🤷🏼‍😂