My first unemployment payment still has not arrived (Chicago)

I was laid off as an operations analyst and filed right away, and I have been certifying every week. I am in Chicago, in case local advice matters. I answered every question and uploaded my final pay stub. Has anyone been through this? How long did it take in the end?

When I finally got through, the agent said my employer had responded late. Once that cleared, back pay came in one payment.

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.