Hint for those frustrated with these crooks.....If you recognize the caller ID answer the call as Detective Smith, FRAUD DIVISION. THey drop you like a hot potatoe
You can't just say "Aw c'mon, government; enforce the law!" You've gotta make the complaint. Write down the directives and go to the National Do NOt Call site (something like donotcall.gov, but you can google "do not call" for the exact URL). Enter the data. They will enforce the law...I have personal experience