Dishonest MTN

I bougt a MTN sim for my kids watch. The airtime kept disappearing. 3 operators later I found out I am being subscribed for stuff I never concented to. I started unsubscribing and blocking on the number they gave ans still I got subscribed to more ****. Keep in mind the watch can't send or receive sms's in order to subscribe from my side. Phoned again just to be told I need to send an e-mail to be removed from the subscription list. I lost like R200. They are a buch of ******. Blatantly *****ing.