Incompetency

I called to report my phone ******, to my surprise I was informed that my insurance was cancelled but without any supporting information as to who cancelled it. I changed my contract to prepaid when my I did a pre quote cancellation in march last year and vodasure has been deducting on my statement until the past two month of which I did not cancel any contract. i tried numerous times to call, email and query but I have not received any solid response as the email domain bounces back. From 28/08 ro date I still have not received any assistance