No one is on the line when I pick up. I put them in my reject list; they still call. How do I get them to stop?

I am also on the DNC list, but every time I try to get some info to get them stopped, they hang up.This time, I played along.  The automated message said they were from "Credit Card Services".  When I spoke to a representative, he asked if I wanted to lower my credit card rate.  I told him I did.  He asked if I had over $4000 in credit card debt, I told him I did. (even though I have no credit card debt.)  I was trying to get to the point where he would ask me personal information so I could question him back.  But then the curious question happened:  "Are you over 70 years old?"I replied no, thinking a credit card company would be interested in younger people.  With that, he hung up.  It concerns me that they are targeting older people exclusively.  My grandparents would probably fall for this-

Phone rang, I always look at the id first, it was (613) 216-2172 in Ottawahull, ON.  I know no one there so I ignored it and the phone stopped ringing.  In a few minutes, the message waiting light on the phone turned on indicating that a new voice mail was stored.  Checked vm, silence, but I saved it anyway just in case.

I am also on the DNC list, but every time I try to get some info to get them stopped, they hang up.

This time, I played along.  The automated message said they were from "Credit Card Services".  When I spoke to a representative, he asked if I wanted to lower my credit card rate.  I told him I did.  He asked if I had over $4000 in credit card debt, I told him I did. (even though I have no credit card debt.)  I was trying to get to the point where he would ask me personal information so I could question him back.  

But then the curious question happened:  "Are you over 70 years old?"
I replied no, thinking a credit card company would be interested in younger people.  With that, he hung up.  

It concerns me that they are targeting older people exclusively.  My grandparents would probably fall for this-

CALLS EVERYDAY... leaves no message. I called back requesting to be removed

This is some company that wants to sell you credit card fee reduction services.  I asked them to remove my number from their calling list, stupid b*tch just hung up on me.  Next time - get a police whistle or freon air horn, when they call and you get a live person let them have it!