Horrible Service from Vodacom Insurance

I have been trying to get Vodacom to cancel my cellphone insurance since the 2nd of February. I have had no response from their complaints department for over a week and a half now. Got hold of the insurance department on Tuesday last week and to my shock, I have been paying for a premium for a phone worth between R 15k and R20k yet the value of the phone insured is R 900. To crown it all. The ,Blackberry’ phone that I have been paying for is discontinued. Nobody wants to take responsibility for the mess. I am always met with very inefficient consultants at the insurance desk who have at every instance kept me holding on the phone for more than 50 minutes. The manager there never takes or even returns calls . I am so disgusted I am considered finding another provider after 16 years with Vodacom.