So after sending in Dave Champions Due process pack, I’m received a notice “CP508C US Dept of State has been notified of your seriously delinquent federal tax debt certification” from the Philadelphia office. 2022 taxes. the rest, 2021-2025 was sent a notice from Kansas City. It’s like the IRS does not respond or acknowledge anything you send them any more. I feel like I literally have to sue them to get a proper response…

Any advice here?