ICO ARE effective!
I've been getting robo-calls from PPI-scum since April. Reported dutifully to the ICO (something like 30 reports). AND THEY did react, as recently I've been getting those robo-calls from a different phone number. And they've changed the message ever so slightly! So stop telling me ICO are useless! For all those ££££ paid to them in wages, bonuses, etc, since April at least - they have actually forced the scammers to act! Call it what you want, I call it a value for money, no less!