Re: TPS is run by the Direct Marketing Association
Your link to TPS states: "The TPS is the only such register that is enforced by law in the UK. It is regulated by Ofcom and enforced by the Information Commissioner's Office (ICO)".
Not sure fox/hen is an issue. The problem in my experience is the law is an ass and the ICO is out-foxed. And those called illegally will never be compensated under any circumstances.
Biting the hand that feeds IT
