useless vodacom

i am so sick and tired of Vodacom. this is my second complaint about them. last year after i upgraded i took insurance and after they mailed me my policy i saw they don't even have the correct phone on the insurance so i tried to get the correct phone put on and they send me pages of paper work to fill out so i decided i wanted to cancel the insurance. i put in the cancellation in July but till now im still getting charged for insurance and its a mission to get through to them and when u eventual get thru the insurance people blame vodacom and vodacom blame the insurance people and it goes back and forth like this since July last year. every month i phone to sort this out and the same story. they tell me they gonna escalate it and pass a credit but nothing ever happens and im getting sick of this bull!!! 7 months of paying for an insurance i canceled.