acs fraud company telling u that u owe them money new york, New York

This guy name Alex brown from the company ACS is telling me that they are going to use me if I don't pay them and that my credit and social security number will have a bad report . Also they said they will get the FBI and the police to come and put me in jail. This company are frauds they have been calling me since last year and they stopped for a few months and they are starting to call me again and when they call me on my caller id it show 11 numbers or sometimes 6 numbers but the number they told me to call was 347-286-7484. That is all I have to say ..