They are a telemarking firm called Lucre, Inc. based in Grand Rapids, MI. Here is their contact info:
Lucre, Inc.
4011 Plainfield Ave NE
Grand Rapids, MI 49525
(616) 361-0128 phone
(616) 361-5717 fax
www.lucre.net
When I called the phone number of the "corporate headquarters" it rang about eight times and then went to an answering machine. They do have an on-line form you can complete that supposedly removes you from their calling list, but they ask for your name and e-mail along with the phone number and I am not giving them that information.
Next time they call, tell them to stop calling or you will report them to the Federal Trade Commission. If they call again, go to www.ftc.com and click on "register a complaint."
I've receiving calls from this number from time to time - each time we get multiple times a day. Now reading these posts, it makes sense that the calls are related to our online purchases. I wish we could come up with preventing these calls.