I had a health savings account through my employer but there is no money in the account. What do I do?

Write the president of the company a letter with your concern and the lack of response in this regard. That may seem like an overkill but it frequently works very well.

Keep contacting employer. Did the year roll over? Normally you have to spend it to get it within the year, and if you don't, you lose it.

Contact your state labor dept. and perhaps the county District Attorney's office.

talk to a lawyer about it

Are you sure you didn't have a Flex Spending Account, or FSA, not a health savings account. FSAs accounts are "use it or lose it". They are designed for you to estimate your annual out of pocket costs for medical care, then have the money set aside as a pre-tax deduction each paycheck. Any money not spent by the end of the year is lost.

If it truly was an HSA, then speak with your HR department in person.

If you have sollid proof that you actually made payments it shouldn't be hard to figure out what happened. There must be a paper trail

talk to your HR representative in person, get an accounting