Thank you! I called them this morning and they confirmed that apparently they tried mailing us a notice but the letter was sent back to them (no idea why), they also tried reaching out through a call to my husband, he forgot to mention and do the payment. But we already fixed it this morning and they said they didn't take any actions or anything, just they passed the tax warrant to a 3rd collector party or something similar to get the payment. They still have to mail us back a satisfaction of judgement. But yes, I never lied on those forms and was always very careful with USCIS (that's why it scared me), just didn't know all this until yesterday.