My husband was in the hospital last September and had surgery. We owe the hospital what the insurance did not pay. It is apx $4000.00. We are paying what we can each month ($40.00) and have told both them and the collection agency that is all we can afford, but we will continue to make them. They are saying that is unacceptable and threatening "further cation" although have not said what that will be. Can they attach a lien on our home for this, especially if we continue to make the payments, as we have already told them we would.