Bad Service

On 02/06/2017, I took Car/ Home Contents and Cellphone Insurance with Standard Bank, they told me that if there is any changes to the policy I should let them know which I did, but when I changed addresses on 10/08/2017 Skhumbuzo Mtshali did not change it, on 23/08/2017 when I had financial constraints, I reversed the payment but did not stop it because I knew that I will have enough money to cover it in Septermber and I had read on the Policy Document that should there be no payment, the policy will only be cancelled on the second month but it was cancelled on 24/08/2017, I never even got notification that my policy was cancelled, now that I wanted to claim, it has been cancelled, when I asked them why wasn't I notified of this? and why those conditions not on the policy document, Skhumbuzo and his colleagues asked me how did I expect to be covered with no payment? What I dont understand is that why that information not on the terms and conditions? or that information just surfaces only now that I want to claim?