Hi, Peter. I applied for N400 in April and had the interview and passed the civics test in October. But in the end, the officer asked if I owe any money to IRS

Hi, Peter. I applied for N400 in April and had the interview and passed the civics test in October. But in the end, the officer asked if I owe any money to IRS. In the paper, IRS thinks we owe them $12K but in fact, we don’t. We’re still working with IRS to resolve the issue, it’s been in process since January 2020 and I don’t think it will be resolved any soon. IRS is shorthanded because of Covid. The officer gave me a deadline until 22nd November and requested to mail them “A signed agreement from the IRS, state or local tax office showing that you have filed a tax return and have arranged to pay the taxes you owe; and documentation from the IRS, state or local tax office showing the current status of your repayment program.” I’ve scheduled an appointment for 29th November with a local IRS office, that’s the best we could do. And tried to call USCIS to extend the deadline but it’s not possible to talk to any human being over the phone. Is it possible to go local USCIS and get an extension? Is it possible to get an extension in general? I don’t want to pay another N400 fee and redo the interview. Is there any way to resolve this with USCIS?