When does my employer coverage actually end? after 9 years as a welding apprentice

HR said my health plan continues for a bit and I do not understand how. Thank you in advance. The letter is unclear about dental and vision. Did coverage match what HR said?

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.

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