Scam call or what i thank is a scam

 

My Complaint: Received three calls from 210-547-1826 to call 210-998-5854 called and they said a mistake was made on tax return for 2008 to 2012 and i owed money to Federal government. a letter had been sent to me and i signed for it. I told them i had never received the letter and ask why they were calling on my cell phone. replied they had resources. They ask for me to have an attorney to call and they would explain the details.

 

My Demand: to report what i think is a scamm