Outsurance cancellation

I have been trying to cancel my policy. It is incredibly difficult as they do not seem to accept cancellations readily. I had to argue the issue with the call centre agent, who reduced me premium from R2640 to R1800. That is a big leap, however, she argued that it was my fault as a client, for not contacting them frequently regarding my policy. I think that Outsurance has lost the plot and it looks like I am going to have to go to my bank to cancel the debit order.