If you want to stop the calls, try the cease & desist letter on LifeCreditDebt.com.  Worked for me!

Try lifecreditdebt.com  they have a cease & desist letter that goes out automatically and i promise you this agency will not call you again!

Got a call from this number.  BLOCKED

Just got a call from Mary Stewart.  No answer so I hung up. Decided to check the #out,figured it was a scam call.

Got a call today but I didn't answer. Once I notified our state's attorney general about these "lower your interest rate" calls that appear to be from within the U.S. She said they are usually from places like the Cayman Islands routed through U.S. numbers. The Do Not Call list means nothing to them. Their robot just dials thousands of numbers and enough turn out to be answered by live suckers to make it pay. Same for the scammers who claim to be from Microsoft and need to "get rid of your computer's virus".