SNAP recertification with changing income - what worked for you?

I got a notice asking for proof of income and I am unsure what to send. I have read a lot of threads here and could not find my exact situation. There are 3 people in my household. What did you submit and how long did approval take?

Thanks for writing this out. I went through something close to it 3 months ago, and it settled down once I kept a simple log of every call and form.