Unauthorised Subscription via Smartcall

I have seen other people complain about the same unauthorised debiting of their vodacom account via Smartcall, so why has this problem not been solved? I've been accused of registering on \load a buddy"";and I would have to physically reply to an sms to say \""yes\"" or \""no\"" to the service. My number is only used for my 3G ****le"