Cancel simcard

I have previously written a review about Telkom and how I am struggling to unsuspend my simcard. Till today, months later, I still want assisted. Telkom said they assisted me and yet I the complaint wasnt resolved. Now I want to cancel my simcard, and they say I need to go in store to first unsuspend it and then cancel it. I am being charged for a simcard that is not in use!! And I still haven't been assisted. I am extremely upset over this service. What on earth must I do to be assisted???!!!!