Checking my last day of health coverage (Boise)

HR said my health plan continues for a bit and I do not understand how. Any experience at all would help. The letter is unclear about dental and vision. How did you confirm your end date?

I moved my appointments earlier while coverage was active. It saved me a bill.

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.