I received a notice from this company that says I owe them XXXX. I do n't know who they are or why they assume that I owe them. The notice states that whatever this is they reported to the credit bureau. The name of the debt collector is : Credit Collection Services out of XXXX, MA. The Company they are collecting for is : XXXX XXXX XXXX Co. I want some specific details on the who, what, where, when, and how. I have health insurance through my employer and auto insurance through a Company in the mid-west. I 'm going to file a complaint with the Department of Insurance as well.