Cancellation of Content Insuarance

<p>On the 7th March 2017 i emailed INNOVATION to cancel my policy with them effective 28/02/2017. I advised that my last debit order would be 25/02/2017 . My instruction was received and confirmed. I was under the impression (as this is the standard practice) that one pays in advance so my Feb payment would cover me for March. On the 28/03/2017, a debit order was deducted from my account my Innovation. When i queried this an asked for a refund, i was informed that i pay in arrear. I find this very strange as i have never heard of any Short Term Isuarance instituation working in arrear. So i paid the new Insuarance company and the cancelled company in the same month?</p>