Damn medical bills

I finished treatment in February and I am extremely frustrated with my medical bills and the places I received treatment from. I am still trying to get over from all of the side effects and they are already sending notices that they will send the account to collections. I called all of them and told them that I cannot work and am working on getting healthy again and I can only afford to pay a small amount each month.
Plus, I am playing catchup on all of the other bills that my family got behind on.
After I told them that, many of them were very understanding and sympathetic. One however, told me that my small payment of $10 a month was not sufficient and that they had to have at least $25 in order to not send it to collections. I told them that they could not dictate how much I could pay and that everyone else was much more cooperative. They said that they could send me a financial assistance form and if we qualify they could write off part of the bill. I told them I didn't care about that. (I was willing to pay my bill completely over time -- it is only $600) But if we didn't qualify they would not accept the $10 a month and the account would go to collections. They said it is just their policy.
I told them that I resented their tactics and that it causes me a great deal of stress. And then I talked to a supervisor who told me that they do recognize extenuating circumstances and that the billing center should have told me to contact the hospital directly.
I am going to make my husband fill out that stupid form. And I am going to add a note telling them what I think of their stupid billing practices.
No one apologized for the confusion and lack of cooperation. And I am furious because I was always told that in general if you can just pay a little a month the creditor has to respect that and realize that you are trying. It doesn't seem to matter to this company.
And I know that there is Consumer Credit Counseling out there. And we did work through them at one time, but the payment had to come out at a certain time each month and had to be paid by money order and it threw everything off. It always came at a bad time of the month when everything else was due.
And I am mad that they want me to detail how many cars we have and insurance policies and some of it I don't consider any of their damn business. I can't sell my car to pay off the bills because then I wouldn't have a car. I cannot cash in my life insurance policy because it is not that old and I need it because my rates will go up because I have had cancer.
I am mad and upset and want to rant to somebody about this. I am thinking about complaining to the Better Business Bureau and anyone else I can find.
Thanks for listening.