I filed my federal taxes, they were denied so I logged back in to fix the issue. When I finished that I was charged state taxes which I am not required to file.

I live in NH which does not require state taxes to be filed. I had successfully submitted and paid for federal taxes already, but when I logged back in to adjust my AGI I was then charged an additional $55 for state taxes which I did not file. How do I get a refund for that $55??