Car Insurance - Crazy World

Last year I took advantage of the Caravan Club deal on car insurance, i.e. a policy for £25 less than any other insurer.  To-day is two weeks from the renewal date but I have received no renewal documents from the Club's brokers.  That being the case I phoned them and was told that my renewal premium will be an astronomical figure.  In fact they are inviting renewal at almost double that of a reputable competitor.  Needless to say the decision ws straightforward.  I find it disappointing that the brokers providing insurance services for club members offer such poor renewal terms.