I heard line 30 is incorrectly filled in for early filers Mine was accepted on the 10th and 30 days later I am still processing

Heard where?  One reason Line 30 (Recovery Rebate Credit) would be wrong is if the user misstated whether they had already received the first two stimulus payments.  Stimulus #3 has not yet been enacted  into law, so is not part of this calculation.

I just spoke with the IRS about this matter.... Was told they will be mailing out forms on March 22

and you can agree or disagree with and then once they get your response back they will issue

your refund. So im looking at some time in April getting my refund. Hope this helps alittle.