Dependent Care FSA

I received my W2 this year and found there was $1000 listed in box 10. I have never had this before and was unsure what it was. After some research I realized I accidentally signed up for Dependent Care FSA last year. I didn't receive that money or use it at all. I don't have any dependents at all.

 

Can I get that money back? If so, how?

When completing my taxes it asks for this amount and then my tax refund decreases. Am I being taxed for money I never received?