I originally received notice of the debt in XX/XX/XXXX. I contacted them and told them that I felt it was a mistake and I would be contacting the original debtor. The debtor advised there was a mistake with my insurance information and they would contact the collector to close the case. I received a call on XX/XX/XXXX advising I still owed money. They refused to send me anything in writing showing the debt as still valid or giving me a chance to dispute the debt. I asked to speak to a supervisor and they refused. The caller became belligerent and told me she did n't have to provide anything further to me. When I refused to set up a payment schedule with her ( because I wanted to speak to the original debtor and my insurance company ), she hung up on me.