When I go to the link to the WinRed site, beneath a bunch of drivel there is a campaign or PAC listed, though I can't tell if this is who the donation is supposed to go to or whether this is the organization that paid for the texts. Naturally, neither WinRed or any of these campaigns/PACs has a phone number listed. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.