Cell C not helpful yet again

Hi I recently went into Cell C to cancel my Dads contract (he passed away on the 23rd March). Adre at Cell C Somerset Mall was very helpful in cancelling the contract and told me that the short balance of the contract would be written off. I asked if I could take over the number on prepaid but was informed that I would have to pay R900 which seemed crazy to me to take over a number on prepaid. I was given a reference number and contacted Cell C call centre today to make sure everything was in order and that the contract has been closed, and that I have no intention of paying for a number. When I called I was told by the consultant they need to do security checks - I said I have a ref number and they would then see that the client is deceased. She said I would then need to go back into the Mall and ask them there??????? I have tried the whole morning to contact Cell C at Somerset Mall and they do not answer the phone it rings and rings and rings. It seem crazy that I am given a reference number which means absolutely nothing when you phone Cell C. I am not happy about the frustration I am having with Cell C (yet again). All other places including MTN and Telkom helped us swiftly and effortlessly.