. I'm assuming, then, that I do not qualify for this exam.
Don't give up so easily. They conduct an oral interview with candidates, perhaps taking a course before the next exam which is usually held in October would qualify you provided your Polish is good enough, so why not giving them a call? See what they say. Perhaps they will suggest something that might suit your situation better, time is getting short for you. You have to knock on every door available to you if you want to achieve your goals.