Then I did a little research on the company and found (without spending any money) the MD's home address. So I signed up with FunkyPigeon (the online card company, part of moonpig or vice verser) and sent her a very politely worded card asking them to distist from calling me. The wording was very polite, I threatened court action via small claims if the calls persist. I included my mobile number plus my home address.
That is absolutely brilliant!