If they are indeed based in Canada -- filing a complaint with the FCC or FTC won't matter, will it??  The U.S. agencies would have absolutely no jurisdiction.

I am very annoyed with these calls, as well.

DIDN'T LEAVE A MESSAGE.i CALLED BACKED AND IT SAID THE VOICE MAIL WAS FULL.wILL NOT CALL OR ANSWER ANYMORE

wanted to lower my interest rate on credit card said i was valued customer...press 6 to speak with live agent as opposed to a dead one? anyway, asked to be put on do not call list and "Stephanie" hung quite loudly in my ear. When you call the number it's set up to go directly to voicemail and the mail box is full...imagine that!

Call came @ 2:11 PM EDT on 08.14.2009 -- caller ID read OTTAWAHULL, ON, apparently originating in Canada. If I don't recognize the name or number on the caller ID whomever is calling is wasting their time because I don't answer.  I've been on the do not call list since day one but that list means absolutely nothing because it hasn't stopped the calls.

File a complaint with the FCC Online here:  http://esupport.fcc.gov/complaints.htm  

These people should be shut down because they use automated machines and do not allow you to tell them to stop.  Their mailbox is "full."