Am one of the victims of ECPs also, called up maxis and got their numbers barred sometime in Jan and Feb this year, and they ended up using different shortcode to send me those stuff again.

Even wrote a complaint letter to MacroK and got response within minutes, a guy named Henry (ch@macrokiosk.com) replied via his blackberry saying that he'll look into the matter and telling me they're only the platform provider to those ECPs but however assured me that they'll block their service after investigation.

I thought that would be the end, until i checked my March and April maxis bills... they appeared again however along with some other new numbers. Damn, enough is enough. I called up Maxis and straight away telling them I want them to them revert back the amount back to me and they agreed to refund you with no question ask! (guess they knew tons of customers are really pissed with them by now) Which is still not enough enough... I need ALL THE ECPs to be barred forever, and not on ad-hoc basis.