These people keep calling my 13 year old daughters...

These people keep calling my 13 year old daughters cell phone and won't give up. When I get on the phone or call them back they go back into their sales monologue about how much they can save me in office supplies. They obviously are not from the US and don't know common courtesy and the rules around harassing underage children repeatedly. I wouldn't take their products if they were giving them away at this point.