I was sent a letter from IC Systems stating I owed a credit {$170.00}. I have a copy of the debt demand. When I disputed the debt and asked that they furnish proof that I owe this debt I was told that if I did not pay the {$170.00} then they will report me for owing XXXX ( which I certainly do not owe ). I told the agent I am an attorney and that was blackmail. He hung up the phone. I was never sent the proof of debt ( I even faxed my dispute to them ) and instead they reported to the credit bureau that I owe {$980.00}.