Ridiculous annual increase

I would like a justification for Dicovery Insure to have increased my premium by 12%. No one I have spoken to can justify such a steap increase and no one is willing to adjust negotiate. One of my vehicles has only been on the policy for 1 month and already an increase has been effected. I thought by being a discovery vitality, card, health, invest, life and insure customer would have some benefit but aparantly not.<br> I'm appauled by this and warn anyone considering moving to Discovery Insure to be aware of the fact that they will lure you in with a competitive premium only to apply ridiculous increases later.