National Check Control

I just got off the phone with these idiots. I recieved a letter from them over a month ago regarding a returned check that they are trying to collect on that is from 1999. When I recieved the letter I promptly sent them a request for a copy of the the check. I sent this CRRR. They refused delivery. Today I recieved another letter stating that I had 10 days to pay or it was being turned over to the authorities. So I callled them. The guy I talked to on the phone was a complete ^%$%$#. I told him I have every intention of paying it but I wanted a copy of the check first. He said they don't send out copies. He then started to get very rude and started yelling and threatening me. Of course I yelled back. He also said it has already been turned over to the DA's office. Which I called immediately since I have a relative that works there and I know the person in charge of the bad check department. They have no record of it. She also told me it has to go back to the original company I wrote the check to to have a complaint filed. The collection agency is in New Jersey and I am in New York. However she wasn't sure of the law in NJ. Anyways do I have any recourse against the collection agency with the abuse and threats that I recieved from this company? I have already called the New Jersey Att. general and they have 4 complaints against this company. Any help will be appreciated. Thanks everyone.