Cancelling a contract

My Brother from Australia is trying to cancel a Vodacom contract that he took out for my Parents. Both Parents are now deceased and the contact must be cancelled. <br> <br> We went to Vodacom Kolonade where they gave us a number to phone. The call centre agent refuses to cancel the contract as there are some questions that my bother can not answer. Taking into account the contract was entered into more that 12 years ago and he immigrated 10 years ago, a person would expect that a company like Vodacom to be a bit more lenient and understanding.<br> <br> Is there anybody at Vodacom that can assist us in this matter please?<br> <br>