MOODY MANAGER/BREACH OF CONTRACT

I am completely disgusted with Vodacom, I have had trouble sorting out Vodacom Cape Gate's mess for almost 6 months now, I took out a contract with them in January and responsibly also took out insurance on the device, only to find out when my phone got ****** not even a month later that my insurance was never activated, I recieved a copy of my contract which clearly indicates where I have signed for insurance, tho never deducted from my account, this is a horrible breach of contract, Saturday when I went in to the branch responsible me and my mother recieved a very cold reception from branch manager Izanette, after I presented my contract to her as evidence where I signed for insurance she spoke to Verna from Customer Service Tygervalley who told us that there is nothing Vodacom is willing to do as Cellsure does not backdate premiums and that it is my responsibilty to check if the money was ever deducted, huh? We told her to cancel the contract since Vodacom has breached it, which she said she cannot do, so I must be held liable to this contract but Vodacom not, I have urged my family and every one I know to not renew there contracts with Vodacom when it expires.