Lease Finance Group They wont stop. Lied and scammed me. Please Help! New York, New York

In 2006 I closed my business washington and called to send my credit card machine back. They said that was fine. When I called to get the information to send back the equipment they said I owed 2400 and I wasn't able to send it back. After several conversations I was told serveral different things. First I was told that the 2400 was for the equipment and then I was told that was the remain amount of my lease. I refused to pay it and they said I could settle for 1600. This was after hundreds of letters and phones calls. Some of which were very threatening. I paid 800. Then I told them that was it. They never stopped calling then. Then in 2008 said they were going to sue me for the balance. But they at this point didn't seem to ever have on record my 800 dollar payment. New York court then made the judgement that I owe 1200. I never heard from them after that. That was in 2008. I got a call today saying that they were going to freeze my bank accounts if I did not pay 1249.00. They have been kind they said in not going forth with the judgement. I don't know how long after a judgment being filed that they can collect. I want them to go away. I hate this scamming company. Please help. I don't want to hear from them again in 5 years. This has been a 6 year pain. HELP!