Checking my last day of health coverage, warehouse supervisor here

I am not sure what date my benefits stop after being let go as a warehouse supervisor. There are 11 people counting on me, so I am trying to be careful. The letter is unclear about dental and vision. How did you confirm your end date?

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