Why Don’t I Qualify For A Healthcare Subsidy

I am a single, female, non-smoker, 28 years old, living in Austin, TX, and I went to United Healthcare for coverage. I haven’t had a job since March 2014 and am currently still unemployed though am planning to find a job soon. The UHC website told me I could get a Gold plan for a monthly premium of $92.84 (down from $245.00). Great!

I applied on healthcare.gov, and was told I was NOT eligible for a subsidy, but rather would have to pay full price for the insurance plan ($245.00).

My question is, how can someone who has not had income since March 2014 not be eligible for any help whatsoever? It seems everyone else is getting a subsidy but I am not allowed help even though I’ve had no income for almost a year.