Cell phone insurance not getting cancelled despite numerous requests to Vodacom. ****************!!

I requested my cell phone insurance to be cancelled by Vodacom since March 2019 when my cell phone contract ended. This is June now, I am still getting billed for the insurance. I have received confirmations on email that the insurance was cancelled yet when Vodacom sends the bill, I am still being charged for the insurance. When I call Vodacom, they refer me to Finrite. When I call Finrite, I get referred back to Vodacom. No one is taking responsibility and all the while, they keep charging me for a service I requested to be cancelled. **************** and extremely poor customer service!