Can't get hold of legal department

We sent a cnacellation request for a deceased person, in November last year. We received a response from MTN that they had received the request. Up till now, they are still debiting us for this account. I have been trying for the past two days, to speak to someone in the Legal Department. The initial response is - we can't put you through, we will have to email them. And then they proceed to give out another number to phone, without taking my details down. I supposedly got put through now, only to have a recorded message say there are no consultants available and the phone was cut off. Very annoying.