Unhappy with the policy

I am very annoyed by the appalling service that i received from King Price, last month i received an email that my premium was going up, i called and told them that i cannot afford the new premium, my contact was then "amended". last night i was debited the premium that i called to advice that i could not afford, i call in to inquire this morning i find a bunch of customer service representatives who do not care, i am told that their colleague made a mistake and i am taken through the process of reducing it again, how appalling. i am cancelling my contract because clearly King Price does not value me as their customer.