Bad Service and terrible communication Skills

I've been trying to cancel my policy with Csurance for a few weeks now. Every time I call, I have to hold on for at 20 minutes before my call is taken and the call gets cut. I've requested for confirmation of cancellation, to date I haven't received it. I will not pay another months premium, due the incompetence of the staff at CSurnace. I requested and sent a signed letter stating that I want the policy cancelled at the beginning of June.<br> HAS MY REQUEST BEEN PROCESSED, WHERE IS MY CONFIRMATION???