the called claiming to be from missouri deputy sheriff's association so i did some digging. channel 5, ksdk, did a story on this company and found that they had been investigated by the BBB. Here is a link to the story: http://www.ksdk.com/money/story.aspx?storyid=208703 I would be VERY cautious about "donating".
The calls are annoying and well worth the cost for call blocking. This number is listed as a land line out of Saint Louis, MO per Intelius. Must be someone with too much time and not enough respect.