FASA SAI -1500 but parents make ~$120k

I just submitted the 2026-2027 FAFSA and my Student Aid Index came back as - 1500. The thing is, my parents together make around $120k.

I confronted my dad about this because I'm aware that our financial situation isn't that dire, and my dad told me he "didn't file the 2024 taxes yet" (which FAFSA uses for this year), and he "knew what he was doing". Based on that I'm assuming he filed the FAFSA and put in false financials just so I would be eligible for more aid.

I don't know what to do in this situation. Does anyone have some advice?