Illinois Non resident correction notice
I had filed for IL state tax 2022, because my employer mistakenly deducted IL tax from my one paycheck mistakenly. And told me they cannot correct it I need to file tax, and now I have gotten correction notice saying its missing schedule NR which I remember I filed and have charged me in error considering me a IL resident which I was not for full year. My employer is not giving me any letter regarding this. IL tax deduction was shown in my W2 along with NC state tax that was deducted as I am NC resident. How shall I proceed to resolve this? I am being asked huge amount and interest is being charged on it which is all in error owing to Illinois gov.