SNAP after a layoff: what documents did you send? after 3 years as a payroll clerk

I got a notice asking for proof of income and I am unsure what to send. There are 3 people counting on me, so I am trying to be careful. I have a final pay stub, a termination letter and my unemployment approval.

Take photos of everything you send and write down the date. I had to resend one page and the record helped.