Didn't know who or what this company was until I w...

Didn't know who or what this company was until I woke up one day to my credit score being obliterated due to a negative hit from these people. A medical bill TWO YEARS OLD. I've never been late on any bills. They are always paid on time. I had no idea it even existed....And the urgent care/ER I went to was the only one open around me at the time and doesn't exist anymore...absolutely ridiculous......No warnings, nothing. As a single parent, my budget is already tight and barely hanging on, and instead of working with me the lowest they could do for $2000 bill was still more than I could afford monthly as i continued to tell them I had 10 dollars to my name...$10....but instead they wanted their money that I don't have...