From They Might Be Giants FAQ http://www.tmbg.org/band-info/faq/#q31:
The Hello Recording Club (also known as The Hello CD of the Month Club) was a subscription-only record company run by John Flansburgh between 1993 and 1997. The Hello Recording Club released ten CD singles by different bands per year. The singles were recorded exclusively for the Hello Recording Club. As of April 1997 the Hello Recording Club has officially gone out of business. Shut its doors. Kaput. Some copies of each year's selections are still available. Call +1-800-HELLO-41 (+1-800-435-5641) for ordering information or write PO Box 551, Palisades, NY 10964. Going out of business. Last chance to buy. Limited stock.
You can also contact The Hello Recording Club by sending e-mail to <firstname.lastname@example.org>.