When I get application in the mail for a credit card with a postage paid envelope...I fill that envelope with as much junk paper as I can and send it back them, let them pay for that postage. I was getting them weekly not anymore. When I get those annoying sales calls, as soon as they start talking I lay the phone down and let them talk, eventually they hang up but I don't. They can't make another phone call until I hang up so I let the phone sit for about 10-15 minutes. The phone calls are getting fewer. They have removed me from their lists because I cause them problems.