BoyMoma

2 years late to file I-751

I am two years late in filing my I-751 form. Here’s the situation:

- We completely overlooked this particular form.
- After my initial green card expired, we applied for the I-90, which has been in process for two years.
- With the extension they provided, I was able to travel and receive my driver's license.
- In April this year, I filed for the N-400.
- During this entire time, I received no communication from USCIS regarding missing documentation.
- Today, at my naturalization interview, I learned I was supposed to file the I-751.
- After some back and forth with the officer, he still conducted my interview. He mentioned that since I am married and have children, I should not have a problem, and he asked me to submit an affidavit of explanation plus supporting documents.
- Later today, I received a letter in my portal asking for "missing documents," specifically the I-751. They gave me four days to provide evidence of the I-751 acceptance or processing status.

I am unsure of what to do. Please help and advise.