Pathetic service by dotsure car insurance

Good day, last year August 2019, i traded my vehicle and took a new one. I had an existing policy with dotsure insurance since 2014. I then reviewed my policy and added a new vehicle and the policy is a nominated driver policy. on 6 August i wrote an email attached a drivers license on the driver i am nominating. My policy was not updated. I called them in sept, oct, they promised to update and send me the updated documents till today i have never received that document. I am tired of calling them because they always say when i drop the call i will receive an email on my mailbox. Why is this? Is this another way for them to reject claims when we claim. I am really disappointed by this service.