At that point, I set up my Winfax pro to continuously dial them and fax them a nasty letter asking them to remove our # from their list, (I thoughtfully included a full page black bitmap, too) I let it run for about a week during the day while we were at work. The calls stopped.
A few years ago some doctor's office got our fax number mixed-up with Walgreens.
They would fax me prescriptions.
Duhhhh.