Worst service ever

I have been trying to change details like mobile phone, beneficiaries for several months and Momentum has no interest or care in the world. Even when wanting to increase my premiums i get no response. I have requested several times to speak to a service Manager as per their own procedure but of course no interest in contacting me. I have now wanted to cancel and move the policy and the service is even worse than before. Worst service ever and a serious regret even using their services. I am still trying to fix things up but will see how it goes. I have had to now actually put a stop order on the debit order. Lets see how fast they reply