" I had lowered the 2022 estimated taxes in the 2021 Amendment "
I don't know what this means. Your estimated taxes for 2022 don't go on 2021 Form 1040-X.
if you are sure you want to pay immediately go to the IRS Direct Pay page at IRS.gov
Select "Amended Return" "1040-X" <tax year>
You should probably wait for a response from IRS if you filed a miscalculated 2021 1040-X
