Update:Finally, today when I called IRS, they confirmed that they got my paper in March and created a case in May 29. So, for the CA residents, the form 843 sho...
Thank you very much Monika,I will wait until the end of May for the grace time of 45 days, then I'll call them again. If still no case created, I'll go to my lo...
Thank you so much for your quick response.I am filing the tax but I get one issue. I didn't join CoveredCA until July-2023, so that all the data from Jan to Jun...