Fake collection attempt

Sarah left a automated message with my sister in law from 877 727 1328 stating they wanted to know if this was me if not call back and tell them how to get ahold of me or they will call all my references and they have a trace on me.  She called me I new right away , scam I owe no one.  I did call the number to get automated machine but got name forward movement recovery. Then googled them to see it is a scam company.  Don't give them any info and let relatives no this is a scam.