I get the same calls. These call cost them almoust nothing but the persons time. If you want nothing and hang up they win. The key is to keep them on the phone as long as possible, then the cost goes up. Every few seconds is another call they could have made. If I have nothing to do I keep them on the phone as long as I can. I agree to everything and get details of everything until it's time to pay. Then I put them on hold to go get the payment. After a few of these unproductive 5-10 minute calls it will either become too unproductive to continue or they will get pissed with the people playing their own game and quit the job. If we all do it they will loose big money. Please repost this as much as you can so we can make an impact.

Telemarketer's call about my credit card.  They will never stop.  I pressed "1" and shouted at the top of my lungs to the representative. My sweet revenge to those nasty telephone spammers.  Everyone should do it.

SAME ... claiming to be the last call to "lower my credit card rate" ... press 1 to talk to a representative ... press 2 to ...blah blah blah ... When I try to dial the number back immediately the operator says it is "unassigned".
This same company has phoned my land line number several times over the past few months.

SAME ... claiming to be the last call to "lower my credit card rate" ... press 1 to talk to a representative ... press 2 to ...blah blah blah ... When I try to dial the number back immediately the operator says it is "unassigned". This same company has phoned my land line number several times over the past few months.

Recording about my credit card.  Call from Dorchester, New Brunswick, Canada
Asked them which card company they were with, they hung up on me.