Telkom won't cancel my insurance.

I've been trying to get insurance for one of my devices cancelled since October. I've contacted both Telkom and Finrite and both told me to contact the other. I've been told by Finrite that my insurance has been cancelled and I've received an Insurance Policy Schedule which no longer shows the insurance that I requested to be cancelled, but still I was billed for it. I've contacted Telkom again this month because I've once again been billed for the insurance and I've once again been told to contact Finrite.