JLU Asset Management Group called my cell phone and left a message on XXXX/XXXX/15 threatening to take action against me if the matter was not resolved by EOB. I have not ever heard from this business on any matter. Did not disclose what matter was. When I called the number on the message I was told I had to call a XXXX that I owed {$90.00}, but would not tell me what the debt was for. I do not know what this is for and they would not give me any information as to what the matter was that needed to be resolved. I was at work when the message was left on my cell phone ( without my permission ).