I understand about this run around as have been through it myself recently with another procedure. I was able to set up a $10 a month payment plan to pay it off but considering you have no income, there may be other options. When you get their final bill contact them, explain the circumstances, and hopefully they will work with you, possibly even writing it off given the circumstances, depends on the office.
It sounds like the good news was that it is something that was considered elective and not of a nature that warranted immediate removal, which is good news. I would breathe a little easier knowing this in the meantime but a painful way to have found it out for the pocketbook. I'm sorry to hear someone else has gone through it too. Good luck talking to them, hopefully something will work out!!