ACS Incorp Scamed me for money a few years ago...thinking I did owe someone but not check! Internet

 Got an email saying that I owed an old debt, outstanding check that I need to make a payment arrangement or I would be going to court and it would cost me thousands of dollars, he said I owed 900.00 but if I made payment arrangements in the next few days that he could cut it in half to 450.00. They harassed me so much I actually thought I owe this because I never had this done to me before so the next few days I decided to make an arrangement. I sent all my personal information and I paid these jerks! I was such a fool! An to this day they still send emails.. Please help get these jerks off the street.