Checking my last day of health coverage after 5 years as an accountant

I was told my coverage ends on my last day, but the letter says the end of the month. I would rather hear the honest version than the polite one. The letter is unclear about dental and vision. How did you confirm your end date?

Dental and vision sometimes end on a different date from medical. Mine did.

Ask HR to confirm the exact date in writing. I also called the insurance company to double-check.