Bad customer care

I called Old mutual on 07 August 2023 at about 11h20 to check on my policies. I had to choose same options and put my ID number numerous times on the keypad and eventually I spoke to someone called Nosi/Nasi who still wanted my ID before transferring me to the same service that required ID number numerous times before connection. Eventually I came through to Vincent from group scheme and informed him that I had a premium related query and can give him my ID number. He just kept quite and I could hear him typing in the background. I then asked if he heard me and he said yes he did. I then told him that he should have at least acknowledged so I will know instead of being quite. He then rudely responded by saying he did acknowledged me when in fact he did not. I then had to leave the call because he had already changed the tone of his voice and I was not gonna get good service. I've noticed that each time I deal with old mutual there's always a problem somewhere