Poor service rendered and Still Same Treatment as Before This is Problematic

Please I'm very much tired of arguing because now the company is now delaying being given the run around with processing claiming things that my mother left it's been a month and a Half trying going back and forth I'd never recommend old mutual to anyone for such poor service now they delaying My Brothers process of going to school with funds available from her late mother

Firstly they'll say the complaints department it's quickly to react and call after hours to shut the case down saying due to no correspondence from client as I always go to branch to enquire but now it's over a month and a half no clear say of what is the outcome now my brother can't even go to school because of such delays it's problematic when financial institutions pay attention to what the client might say on social than them focusing on serving the clients, you can't get a single call on any update unless you start frequentin the branch and always complaining