called --no message--cannot connect when calling back

IT IS A SCAM

There was a delay of several seconds after I answered, but a woman came on and gave me an extended car warranty pitch. I asked her what company she was calling for, and explained that my number is on the federal Do Not Call list. I think she said "National Protection Agency" but there was a lot of background noise on her end. I also asked her to remove me from their call list, she was polite and said she removed the number. I always file a report with the federal DNC as well as the FTC for these types of calls.

Noise in background. No answer.

Asking me to by prescriptions over the phone...have told them SEVERAL times to stop calling! They just hang up on me then.