Execrable service for an old customer ("execrable" = appalling, disgraceful, atrocious etc)

For many years - since the early 1960's I have had one or more Old Mutual policies. Recently I decided to simplify my portfolio of living annuities and odd investments that I had made over the years. Since December 2019 I have been trying to get helpful responses from Old Mutual. I guess that the problem is that I want to move my policies/investments to another more user-friendly company. Before writing this I tried to phone them but as it was just after 5pm of course there was no answer. They obviously haven't realised that many of their customers would like to attend to their personal business after "normal" hours. My dealings have been with their "Wealth Contact Centre".