Appalling Service from Outsurance

I've been a client with Outsurance for over 2 years now. About two weeks ago, my premium for my car was returned. The very next day I received a letter from them "stating that my policy was cancelled" due to two consecutive unpaid premiums, which was clearly not the case. When I called in to re-instate my policy, they said to me "your policy has been cancelled due to your risk status and claims history". There has never been any formal communication from Outsurance to me in this regard. Spoke to them on Monday, they said they will speak to the Underwriting and get back to me, never did. Called in on Wednesday, they said they will escalate to there supervisor and call me in an hour, never did. This has got to be the worst experience I have ever had with short term insurance. My car is parked off, until this is resolved. They gave me no notice of cancellation, no notice of increase in premium due to claims history, they just cancel? Is that legal, or fair to the customer?