Have found most policies are 7 or 14 days before they roll over onto full cancellation fee. Also the "administration" fees are now mental high, £45 to £60 then as high as £90 for proper cancel after distance selling time
Damn, used to be around £30 and 28 or 30 days I seem to remember. It's been years since I've done it but it was a regular occurrence as a teenager. Possibly why they don't do it any more!
^^^This, and if you arrange the dates carefully you could cancel the insurance policy within 30 days and just pay the admin fees.