I have the same problem and the parental control department told me the fault is with my settings. I know it is active as it is blocking Facebook etc and I cannot change my settings
@Anonymous and @Ric I'm really sorry about the issues you're experiencing when trying to turn off parental controls.
Please use the 'click here to contact the mods' link in my forum profile to send in your details and we'll be happy to help. You can find the link by clicking on my username.