No one on the other end....Maybe a wrong Number ???

This number, (780) 424-5841, has called me 3 times today. When I finally answered it was BBC or something marketing, looking to do some kind of survey. They knew they were calling a cell phone, asked them how they obtained the number, was told it was on the computer, asked her how the computer gets the number. Said she didn't know but could ask her supervisor. Asked her to please remove my number from her list and she said "Since you said list, we can remove it from the list"Wtf....

This # called my home and i called it back but the # is not valide.... How cat it be if they are able to call???

says this number is not in service, called my work phone number, a message from a Jeff Ewanchuk

I got called at 5:55pm Friday November 6th but I didn't answer it as I didn't recognize the number.  I've tried reverse look up but nothing comes up.  Luckily I've only been called the one time.