You did apply for financial aid if you filled out the CSS. That’s why you got the IDOC request.
You are trying to say you didn’t fill out FAFSA.
If you don’t complete the aid activities - both FAFSA and IDOC where applicable, then you won’t be considered.
But you then might want to alert the schools so they don’t hold up making an admission decision on you.
On the flipside, you can fill out FAFSA and do the IDOC where required.
But yes, you did in fact, apply for aid…you just didn’t follow through the entire process.
Good luck.