Charities are not immune
However Market research, (Mori and the like) CAN call you, as can any company that you "have an ongoing relationship with" (Like your bank). This doesn't (Shouldn't) include buying and selling lists

To quote from TPS:
"It is a legal requirement that all organisations (including charities, voluntary organisations and political parties) do not make such calls to numbers registered on the TPS unless they have your consent to do so."

TPS is a good move, but as above doesn't stop the autodiallers, phonebook shufflers, and furriners.
(Sir Tainley Barking Ezekiel 23:20, Mon 31 May 2010, 1:15, Reply)