This is a telemarketer, and a dishonest one at that.  It starts disguised as an environmental survey.  For answering a few questions the caller says he/she will put your name in a "draw."  A week or so later, you receive another call saying you won $1,000 worth of coupons which someone will deliver at a set time.  No mention of a demo or any sales pitch.  When the person arrives, however, he/she insists on doing a "demo" ... no demo, no coupons.  If you refuse, he/she will give you a sob story of having "driven all this way for nothing," etc. It's disgusting.

Tried to call back to cancel.
No Answer.

This # won't stop calling. I never answer it. They don't leave a message, just keep calling back.