HSA Account with no HDHP

I'm doing my daughter's taxes. She has an HSA with contributions from her employer. It's listed in box 12 of her W2 with "W." She has never contributed to this. The employer mentioned something about a Cafeteria Plan. She does not have a HDHP. I am unsure how to fill out form 8889. There is no option for this. Also she has never been enrolled in medicare. I chose"none" but this implies she in enrolled in Medicare. What should we do?