Policy cancelation

After being with this company for almost 4 years claim free and the past two months there's a problem with my bank and couldn't debit the account and now they say the have canceled the policy with immediate effect no has ever phoned to say they can't debit the account but they phone to say they have canceled the policy what you doing you neglected to say it when you flood the media with your adverts you fail to tell people how you really treat them you blood ****s.