I've given to Smile Train also. BUT, I've never given them my phone number. Therefore, I'm not so sure about this "Donor Services" outfit. I'll report to the DNC anyway, even tho charities are exempt. Are fund raising outfits exempt too? I've read that they keep a large portion of the funds "donated".
I regularly contribute to Smile Train also and don't like to contribute to a telephone caller. I called them back and they were very polite when I asked to be removed from their list.