These people are a nightmare to deal with. We made the mistake of making a small donation about two years ago, before we had looked into the organization or checked its ratings. Now, we are called incessantly, day and night, even though we have asked with each call to be put on the "do not call list." When we make this request of the call center operator, we get hung up on instantaneously. We've gotten letters from these people -- probably a dozen times -- each one saying that we have made a pledge, when we haven't. I have finally called the organization directly hoping to end the assault; I will keep calling them until they stop calling and sending me mail.