Finrite vodacom insurance

My cell phone insurance was cancelled in February yet I am still being charged!!! When I call to speak to a consultant, I get put on hold for 45mins!!!. I have called the company 20 times over the last months and yet I am still being charged. This is just another example of the public being exploited and forced to pay for services that they no longer require. I request a credit on my vodacom account but this seems to be an impossibility