I was given a message on my job that a man called to talk to me named XXXX XXXX and I was given his phone number. I called him and asked him who he was and he said he could not help me until he knew my name. i said XXXX XXXX. He asked what phone number he called. I said I do n't know what phone number you called, I just got a message to call you. Who are you? What kind of business is this. He proceeded to become very rude and belligerent saying he ca n't help me if I ca n't tell him the phone number. I said I told you I do n't know who you called. He said he had no one by that name and again stated he ca n't help me without a phone number and said call me when you get it and hung up on me. His phone number is XXXX and the name of the company is Critical Resolution Mediation.